Why do these statements evaluate the way they do?

[Anthony Papillion]

I'm trying to figure out why the following statements evaluate the way they do 
and I'm not grasping it for some reason. I'm hoping someone can help me.

40+2 is 42 #evaluates to True
But
2**32 is 2**32 #evaluates to False

This is an example taken from a Microsoft blog on the topic. They say the 
reason is because the return is based on identity and not value but, to me, 
these statements are fairly equal.

Can someone clue me in?

Anthony
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Re: Sending an email with a binary attachment

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

On 03/01/2016 02:03 AM, Chris Angelico wrote:
> On Tue, Mar 1, 2016 at 6:58 PM, Anthony Papillion 
> <anth...@cajuntechie.org> wrote:
>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA512
>> 
>> On 02/29/2016 11:13 AM, Chris Angelico wrote:
>>> On Tue, Mar 1, 2016 at 4:08 AM, Peter Pearson 
>>> <pkpearson@nowhere.invalid> wrote:
>>>> try: smtp.sendmail(message['From'], message['To'], 
>>>> message.as_string()) except: print "Message sending has
>>>> failed" sys.exit(1) print "Message sending was successful"
>>>> sys.exit(0)
>>>> 
>>> 
>>> This is the problem, right here. Replace this code with:
>>> 
>>> smtp.sendmail(message['From'], message['To'],
>>> message.as_string())
>> 
>> Hmm, I'm a bit confused. Are you saying that the problem is that
>> I'm enclosing the code in a Try/Except block? Besides that, I
>> don't see anything different. If it's the Try/Except block, how
>> do I catch the exception it might generate if I'm not using the
>> exception block?
>> 
> 
> That's exactly the difference. Why do you need to catch the
> exception? All you're doing is destroying all the information,
> rendering it down to a blunt "has failed".

Mostly, I catch exceptions for two reasons: 1) because it's a habit
that I've developed over the years and 2) I think unhandled exceptions
make things look ugly. Mostly, I catch them from habit though.


> 
> You should catch exceptions if you can actually handle them, but
> if all you're doing is printing out a fixed message and aborting,
> delete that code. Less code AND a better result.

You make some very good points. It's going to take me some time to not
catch exceptions by knee-jerk but I can see how doing so can cripple
code and make debugging much harder. Thanks for the pointers.

Anthony


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Re: Sending an email with a binary attachment

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

On 02/29/2016 11:13 AM, Chris Angelico wrote:
> On Tue, Mar 1, 2016 at 4:08 AM, Peter Pearson
>  wrote:
>> try: smtp.sendmail(message['From'], message['To'], 
>> message.as_string()) except: print "Message sending has failed" 
>> sys.exit(1) print "Message sending was successful" sys.exit(0)
>> 
> 
> This is the problem, right here. Replace this code with:
> 
> smtp.sendmail(message['From'], message['To'], message.as_string())

Hmm, I'm a bit confused. Are you saying that the problem is that I'm
enclosing the code in a Try/Except block? Besides that, I don't see
anything different. If it's the Try/Except block, how do I catch the
exception it might generate if I'm not using the exception block?

Thanks,
Anthony


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Sending an email with a binary attachment

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Hello Everyone,

I've been trying to write a /very/ simple script that will email a
binary file to an email address when run. Pretty simple. I've done
quite a bit of research and have finally settled on the following code:

http://pastebin.com/sryj98wW

For some reason though, sending mail is failing every time. I've made
sure that the password is correct (which seems to be the most usual
error).

Still, I just can't get it to work. Can someone take a look at this
code and give me some advice?

Thanks!
Anthony
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Re: Everything good about Python except GUI IDE?

[Anthony Papillion]

I would absolutely recommend you take a look at the Qt stuff.  Very modern, 
easy to use,  and free for non-commercial products.  

Anthony 

On February 27, 2016 5:18:57 AM CST, wrong.addres...@gmail.com wrote:
>I have some VB forms with more than a hundred objects. If I cannot drag
>and drop text boxes, list boxes, labels, etc., it will be too much work
>to create that with several lines of code for each object. 
>
>Isn't there any good GUI IDE like Visual Basic? I hope there are some
>less well known GUI IDEs which I did not come across. Thanks.
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There has to be a better way to split this string!

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Hello Everyone,

I am using datetime.now() to create a unique version of a filename.
When the final file is named, it will look something like:

myfile-2015-02-09-19-08-45-4223

Notice I'm replacing all of the "."'s, " "'s, and ":"'s returned by
datetime.now() with "-"'s. I'm doing that using the following code but
it's freaking ugly and I KNOW there is a better way to do it. I just
can't seem to think of it right now. Can anyone help? What is the
"right", or at least, less ugly, way to do this task?

Here is the code I'm using:


unprocessed_tag = str(datetime.datetime.now())
removed_spaces = unprocessed_tag.split(" ")
intermediate_string = removed_spaces[0] + "-" + removed_spaces[1]
removed_colons = intermediate_string.split(":")
intermediate_string = removed_colons[0] + "-" + removed_colons[1]
+ "-" + removed_colons[2]
removed_dots = intermediate_string.split(".")
final_string = removed.dots[0] + "-" + removed_dots[1]

return final_string

Thanks!
Anthony

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Re: [SOLVED] There has to be a better way to split this string!

[Anthony Papillion]

On 02/09/2016 07:26 PM, Anthony Papillion wrote:
> Hello Everyone,
> 
> I am using datetime.now() to create a unique version of a filename.
> When the final file is named, it will look something like:
> 
> myfile-2015-02-09-19-08-45-4223
> 
> Notice I'm replacing all of the "."'s, " "'s, and ":"'s returned by
> datetime.now() with "-"'s. I'm doing that using the following code but
> it's freaking ugly and I KNOW there is a better way to do it. I just
> can't seem to think of it right now. Can anyone help? What is the
> "right", or at least, less ugly, way to do this task?

Found the solution in strftime(). Exactly what I was looking for.



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Re: [SOLVED] There has to be a better way to split this string!

[Anthony Papillion]

On 02/09/2016 07:47 PM, Ben Finney wrote:
> Anthony Papillion <anth...@cajuntechie.org> writes:
> 
>> On 02/09/2016 07:26 PM, Anthony Papillion wrote:
>>> I am using datetime.now() to create a unique version of a filename.
>>> […]
>>
>> Found the solution in strftime(). Exactly what I was looking for.
> 
> For the task of making a unique filename, you should also consider the
> ‘tempfile’ module in the standard library.

I looked at tempfile. Unfortunately, the filename has to be both
'unique' and 'identifiable' to the original. So if I am using mydog.jpg
as the source and I am adding something unique to it, it has to still
have mydog.jpg in the filename. Tempfile, I think, doesn't allow an easy
way to do that. So I'm just adding the exact date and time which is
unique enough for my purposes.

Thanks for the pointer though.

Anthony


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Getting data out of Mozilla Thunderbird with Python?

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Hello Everyone,

I have a TON of email (years) stored in my Thunderbird. My backup
strategy for the last few years has been to periodically dump it all
in a tar file, encrypt that tar file, and move it up to the cloud.
That way, if my machine ever crashes, I don't lose years of email.

But I've been thinking about bringing Python into the mix to build a
bridge between Thunderbird and SQLite or MySQL (probably sqlite) where
all mail would be backed up to a database where I could run analytics
against it and search it more effectively.

I'm looking for a way to get at the mail stored in Thunderbird using
Python and, so far, I can't find anything. I did find the mozmail
package but it seems to be geared more towards testing and not really
the kind of use I need.

Can anyone suggest anything?

Many Thanks,
Anthony Papillion

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How to create a folder using IMAPLib?

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

I'm writing a program to help migrate mail from one host to another
with a few special circumstances. I'm able to get a list off of the
source IMAP server using the .list() command but I'm not quite sure
how to create a folder on the target machine.

Does anyone know how to create a folder using IMAPlib?

Thanks,
Anthony

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Creating PST files using Python

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Does anyone know of a module that allows the wiring of Outlook PST files using 
Python? I'm working on a project that will require me to migrate 60gb of 
maildir mail (multiple accounts) to Outlook.

Thanks
Anthony
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Re: How to handle attachments passed via Postfix

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512



On October 13, 2015 2:04:09 AM CDT, Burak Arslan <burak.ars...@arskom.com.tr> 
wrote:
>
>
>On 10/13/15 00:52, Anthony Papillion wrote:
>>> Check out the email.parser module, or the convenience function
>>> > email.message_from_string - you should be able to get at the
>>> > different parts (including attachments) from there.
>>> >
>> Many thanks! Checking it out now. Sounds like exactly what I'm
>looking
>> for.
>
>Also have a look at flanker (https://github.com/mailgun/flanker)
>basically doing the same thing.
>
>Here's why it exists:
>https://github.com/mailgun/flanker/blob/master/docs/User%20Manual.md#rationale

Thanks Burak!I've just had a look at it and it looks pretty amazing.  I 
particularly like the speed incest and smaller memory footprint.  Thanks for 
pointing me here!

Anthony

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How to handle attachments passed via Postfix

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

I'm writing a script that will have email with attachments passed to it via 
Postfix.  Postfix is properly passing the email to the script but I'm not quite 
sure how to get at the attachment.  What I need to do is save the attachment 
out to the filesystem.

Can anyone point me in the right direction?

Thanks!
Anthony

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Re: How to handle attachments passed via Postfix

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

On 10/12/2015 3:58 AM, Chris Angelico wrote:
> On Mon, Oct 12, 2015 at 6:17 PM, Anthony Papillion 
> <anth...@cajuntechie.org> wrote:
>> I'm writing a script that will have email with attachments passed
>> to it via Postfix.  Postfix is properly passing the email to the
>> script but I'm not quite sure how to get at the attachment.  What
>> I need to do is save the attachment out to the filesystem.
>> 
>> Can anyone point me in the right direction?
> 
> If I understand the situation correctly, you're getting a 
> MIME-formatted email, and want to decode it into a usable
> attachment - right?
> 
> Python includes a package for teasing apart RFC[2]822 format
> emails:
> 
> https://docs.python.org/3/library/email.html
> 
> Check out the email.parser module, or the convenience function 
> email.message_from_string - you should be able to get at the
> different parts (including attachments) from there.
> 

Many thanks! Checking it out now. Sounds like exactly what I'm looking
for.

Anthony

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Is there a Windows Python SIG?

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Over the next few months,  I'll be working on a project using Python on 
Microsoft Windows.  While I'm doing this project, I'd also like to contribute 
in any way I can to making Python in Windows better.

Does anyone know if there is a Windows SIG? I went to the Python website where 
I thought I'd seen one but it doesn't seem to be there now. Any thoughts?

Anthony

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How do I real a SSL certs serial number using Python?

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

I'm writing a simple tool that needs to read the serial number of a remote SSL 
certificate.  I've poked around Google for a bit but can't find anything that 
fits the bill.  Is this possible in Python? If so,  would someone point me in 
the general direction of how to do it?

Thanks,
Anthony Papillion
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Version: APG v1.1.1

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Re: What killed Smalltalk could kill Python

[Anthony Papillion]

On 01/21/2015 04:35 PM, Chris Angelico wrote:
 On Thu, Jan 22, 2015 at 6:18 AM, Grant Edwards invalid@invalid.invalid 
 wrote:
 On 2015-01-21, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote:
 In 2009, Robert Martin gave a talk at RailsConf titled What Killed
 Smalltalk Could Kill Ruby.

 But does he answer the more important question and can we use it to
 kill PHP?.
 
 PHP won't die so long as there are people willing to apologize for its
 every flaw and defend it on the basis that huge sites X, Y, and Z all
 use it. But we don't need it to die. All we need is for Python to
 live, and we can ignore PHP and write Unicode-aware web sites with
 simple, trustworthy entry points, and not worry about the rest.

To be fair, PHP has come a long way in the last few years and, I hear,
there's movements within the community to make it better. Namespaces
were a bit deal as were a few other things. Personally, while I am
LOVING Python, I'd be sad to see PHP die. It's got a lot of potential if
the community can get its crap together and take off the ruby coloured
glasses.

Anthony
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How do I remove/unlink wildcarded files

[Anthony Papillion]

Hi Everyone,

I have a function I'm writing to delete wildcarded files in a directory.
I tried this:

def unlinkFiles():
os.remove(/home/anthony/backup/unix*)

This doesn't seem to work because it's a wildcard filename. What is the
proper way to delete files using wildcards?

Thanks,
Anthony

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Read TLS cert serial number?

[Anthony Papillion]

Is there a way to read the serial number of a TLS cert my app receives?

Anthony

Sent from my mobile device

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Why Python 3?

[Anthony Papillion]

Hello Everyone,

So I've been working with Python for a while and I'm starting to take
on more and more serious projects with it. I've been reading a lot
about Python 2 vs Python 3 and the community kind of seems split on
which should be used.

Some say 'Python 3 is the future, use it for everything now' and other
say 'Python 3 is the future but you can't do everything in it now so
use Python 2'.

What is the general feel of /this/ community? I'm about to start a
large scale Python project. Should it be done in 2 or 3? What are the
benefits, aside from the 'it's the future' argument?

Thanks,
Anthony
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Re: How can I parse this correctly?

[Anthony Papillion]

On Apr 5, 2014, at 23:03, Chris Angelico ros...@gmail.com wrote:

On Sun, Apr 6, 2014 at 1:52 PM, Anthony Papillion  
papill...@gmail.com wrote:

When I try to
cast them like this:

print int(row['YEAR'])

I am told by the interpreter:

Traceback (most recent call last):
 File analyze.py, line 14, in module
   print int(row['MONTH'])
ValueError: invalid literal for int() with base 10: ''

What am I doing wrong? Am I not understanding HOW to cast?


An empty string isn't a valid Python integer, unlike in some other
languages where it's taken as zero. Do you have data in some but not
in others? Should all blank entries be interpreted as zero? (That's
common with a lot of spreadsheets.) Make sure that's really what you
want, and then just do this:

print int(row['MONTH'] or 0)

That'll set a default of zero, if (and only if) the MONTH string is  
blank.


Many thanks! That's exactly what I was looking for. In this case,  
since I'm needing to create a valid date, I'm defaulting to 1.



By the way, is there a reason you're using Python 2 rather than Python
3? For new projects, you ideally should be working with a more recent
version of Python; that way, you won't have to edit your code later,
when you find there's some newer feature that you want. The
differences aren't huge, but the sooner you make the change, the less
code you have to look at


No particular reason at all. I've Bern dabbling in Python for the last  
bit and am just writing code based on the samples or examples I'm  
finding.  What was the tipoff that this was not Python 3? Would there  
be a large difference in this code if it was Python 3?


Anthony
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Re: How can I parse this correctly?

[Anthony Papillion]

On Apr 5, 2014, at 23:21, Ben Finney ben+pyt...@benfinney.id.au wrote:


Anthony Papillion papill...@gmail.com writes:


for row in r:
   print row['YEAR']

This works fine. But, I am needing to do date addition/subtraction
using datetime and so I need these dates as integers.


I assume you mean you will be creating ‘datetime.date’ objects. Wh 
at

will you set as the month and day?


Right, I did mean datetime.date. As form month and day, I also have a  
column in my data for that. I'll be pulling it the same way I'm doing  
with year




Alternatively, if you just want to do integer arithmetic on the year,
you don't need the ‘datetime’ module at all.


True. But I do actually need to some date based calculations.  
Basically I'm processing a large data set and calculating time  
intervals between entries




When I try to cast them like this:


Python doesn't have “cast”; instead, you request the creation of  
a new

object by calling the type.


Hmm, interesting. I need to think on that for a moment.  I may well  
have completely misunderstood a major part of Python all this time.



print int(row['YEAR'])


What do you expect this to return when ‘row['YEAR']’ is  
‘’ (empty

string)?


I expected a defaut value to be returned, perhaps 0. I see now from  
another response that this is not the case and so I've fixed it to read


print int(row['YEAR'] or )




I am told by the interpreter:

Traceback (most recent call last):
 File analyze.py, line 14, in module
   print int(row['MONTH'])
ValueError: invalid literal for int() with base 10: ''

What am I doing wrong?


You've ignored the condition where your ‘row['YEAR']’ is the empty
string. Python doesn't have an unambiguous integer represented by the
empty string, so it refuses to guess.

You'll need to handle that specially, and decide what value you want
when that's the case.


Thank you! I actually like the fact that it won't simply fill  
something in. It makes things more predictable and stable.


Anthony
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How can I parse this correctly?

[Anthony Papillion]

Hello Everyone,

I'm working with historical earthquake data and I have a tab delimited
file. I'm using the csv module with the \t delimiter to denote it's
tab separated and it's working fine. I've set things up loike this:

import csv

f = open('earthquakes.tsv')
r = csv.DictReader(f, delimiter='\t')

for row in r:
print row['YEAR']

This works fine. But, I am needing to do date addition/subtraction
using datetime and so I need these dates as integers. When I try to
cast them like this:

print int(row['YEAR'])

I am told by the interpreter:

Traceback (most recent call last):
  File analyze.py, line 14, in module
print int(row['MONTH'])
ValueError: invalid literal for int() with base 10: ''

What am I doing wrong? Am I not understanding HOW to cast?

Thanks,
Anthony
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How to parse JSON passed on the command line?

[Anthony Papillion]

Hello Everyone,

I'm writing a little helper script in Python that will access a JSON
formatted argument from the shell when it's called. The parameter will
look like this:

{url:http://www.google.com}

So, if my program is called getargfromcli.py the call will look like this:

getargfromcli.py {url:http://www.google.com}

In the case above, I assume my JSON string will be argv[1]. In fact,
when I do

print sys.argv[1]

It works as expected and prints out the JSON string as expected like
this: {url:http://www.google.com}

Now, for the harder part. When I try to PARSE this JSON using this code:

json_string = json.loads(sys.argv[1])

I get an error saying that No JSON object could be decoded.  Even
though this looks like valid JSON and was generated by a JSON generator.

Can anyone tell me what I'm doing wrong? Basically, I want to eventually
get the value of url into a string.

Thanks!
anthony

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Another question about JSON

[Anthony Papillion]

Hello Again Everyone,

I'm still working to get my head around JSON and I thought I'd done so
until I ran into this bit of trouble. I'm trying to work with the
CoinBase API. If I type this into my browser:

https://coinbase.com/api/v1/prices/buy

I get the following JSON returned

{subtotal:{amount:128.00,currency:USD},fees:[{coinbase:{amount:1.28,currency:USD}},{bank:{amount:0.15,currency:USD}}],total:{amount:129.43,currency:USD},amount:129.43,currency:USD}

So far, so good. Now, I want to simply print out that bit of JSON (just
to know I've got it) and I try to use the following code:

returnedJSON = json.loads('https://coinbase.com/api/v1/prices/buy')
print returnedString

And I get a traceback that says: No JSON object could be decoded. The
specific traceback is:

Traceback (most recent call last):
  File coinbase_bot.py, line 31, in module
getCurrentBitcoinPrice()
  File coinbase_bot.py, line 28, in getCurrentBitcoinPrice
returnedString = json.loads(BASE_API_URL + '/prices/buy')
  File /usr/lib/python2.7/json/__init__.py, line 326, in loads
return _default_decoder.decode(s)
  File /usr/lib/python2.7/json/decoder.py, line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File /usr/lib/python2.7/json/decoder.py, line 384, in raw_decode
raise ValueError(No JSON object could be decoded)
ValueError: No JSON object could be decoded


I'm very confused since the URL is obviously returned a JSON string. Can
anyone help me figure this out? What am I doing wrong?

Thanks in advance!
Anthony


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Re: Another question about JSON

[Anthony Papillion]

On 09/13/2013 08:24 AM, Peter Otten wrote:
 Anthony Papillion wrote:
 
 And I get a traceback that says: No JSON object could be decoded. The
 specific traceback is:

 Traceback (most recent call last):
   File coinbase_bot.py, line 31, in module
 getCurrentBitcoinPrice()
   File coinbase_bot.py, line 28, in getCurrentBitcoinPrice
 returnedString = json.loads(BASE_API_URL + '/prices/buy')
   File /usr/lib/python2.7/json/__init__.py, line 326, in loads
 return _default_decoder.decode(s)
   File /usr/lib/python2.7/json/decoder.py, line 366, in decode
 obj, end = self.raw_decode(s, idx=_w(s, 0).end())
   File /usr/lib/python2.7/json/decoder.py, line 384, in raw_decode
 raise ValueError(No JSON object could be decoded)
 ValueError: No JSON object could be decoded
 
 So json.loads() expects its first argument to b valid json, no a URL.
 You have to retrieve the data using other means before you can deserialize 
 it:
 
 data = urllib2.urlopen(...).read()
 returned_json = json.loads(data)
 
 Replacing ... with something that works is left as an exercise. (It seems 
 that you have to use a Request object rather than a URL, and that the 
 default Python-urllib/2.7 is not an acceptable user agent.

Thank you Peter! That was all I needed. So here's the code I came up
with that seems to work:

req = urllib2.Request(BASE_URL + '/prices/buy')
req.add_unredirected_header('User-Agent', USER_AGENT)
resp = urllib2.urlopen(req).read()
data - json.loads(resp)
return data['amount']

Thank you for the help!

Anthony






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Re: Can I trust downloading Python?

[Anthony Papillion]

On 09/09/2013 04:41 AM, Steven D'Aprano wrote:
 On Mon, 09 Sep 2013 02:39:09 +1000, Chris Angelico wrote:
 
 On Mon, Sep 9, 2013 at 2:08 AM, Charles Hottel chot...@earthlink.net
 wrote:
 I think this article is relevant althought the code examples are not
 Python but C:

 http://cm.bell-labs.com/who/ken/trust.html

 That is quite true, and yet not truly helpful here :) It's like pointing
 out that we could be being fed false information, and then suggesting
 that The Matrix is technically possible. Once you start distrusting to
 that level, you become paranoid to a point that's inappropriate to all
 but the most critical situations. I'd accept and maybe even recommend
 that sort of paranoia if you're running a nuclear power station, or an
 automated weapon system capable of firing missiles that destroy the
 planet, or a bank that holds everyone's money. For the average Joe,
 there's no point panicking.

 Also: That hack works beautifully when there's precisely one C compiler.
 In today's world, there are many (well known ones like gcc, clang, MS
 Visual Studio (whatever the compiler from that is called), and a bunch
 of lesser-known ones as well), and it's pretty easy to just grab a
 different compiler and build. The chances that your code will be falsely
 compiled by TWO compilers would have to be infinitesimal, and you
 needn't stop at two. 
 
 That logic is dubious. Compilers aren't compromised by chance, and we 
 don't know the a priori probability of any specific compiler being 
 compromised. That depends on the attacker, surely? We know, for example, 
 that the NSA has compromised multiple brands of router, smart phone and 
 similar. If they, or some other similar organisation with equivalent 
 capabilities, were going to attack compilers in the same manner, they 
 surely wouldn't stop at one.

But (and this is stepping into *really* paranoid territory here. But
maybe not beyond the realm of possibility) it would not be so hard to
compromise compilers at the chip level. If the NSA were to strike an
agreement with, say, Intel so that every time a compiler ran on the
system, secret code was discreetly inserted into the binary, it would be
nearly impossible to detect and a very elegant solution to a tough problem.

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How can I remove the first line of a multi-line string?

[Anthony Papillion]

Hello Everyone,

I have a multi-line string and I need to remove the very first line from
it. How can I do that? I looked at StringIO but I can't seem to figure
out how to properly use it to remove the first line. Basically, I want
to toss the first line but keep everything else.  Can anyone put me on
the right path? I know it is probably easy but I'm still learning Python
and don't have all the string functions down yet.

Thanks,
Anthony
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Re: How can I remove the first line of a multi-line string? (SOLVED)

[Anthony Papillion]

On 09/02/2013 11:12 AM, Chris “Kwpolska” Warrick wrote:
 On Mon, Sep 2, 2013 at 6:06 PM, Anthony Papillion papill...@gmail.com wrote:
 Hello Everyone,

 I have a multi-line string and I need to remove the very first line from
 it. How can I do that? I looked at StringIO but I can't seem to figure
 out how to properly use it to remove the first line. Basically, I want
 to toss the first line but keep everything else.  Can anyone put me on
 the right path? I know it is probably easy but I'm still learning Python
 and don't have all the string functions down yet.

 Thanks,
 Anthony
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 Use split() and join() methods of strings, along with slicing.  Like this:
 
 fullstring = foo
 bar
 baz
 
 sansfirstline = '\n'.join(fullstring.split('\n')[1:])
 
 The last line does this:
 1. fullstring.split('\n') turns it into a list of ['foo', 'bar', 'baz']
 2. the [1:] slice removes the first element, making it ['bar', 'baz']
 3. Finally, '\n'.join() turns the list into a string separated by
 newlines (bar
 baz)

This, of course, worked like a charm. I really need to study the string
methods. In the work I'm doing they are going to come in very handy.
Thank you, Chris!

Anthony


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How do I process this using Python?

[Anthony Papillion]

Hello Everyone,

I'm writing a processor for Bitmessage messages and I am needing to
parse the following returned JSON string:

{u'inboxMessages': [{u'fromAddress':
u'BM-2DBYkhiBZCyrBa8J7gFRGrFRSGqtHgPtMvwQ', u'toAddress':
u'BM-2DC7SCTj2gzgrGgMvUCARdrfrsgLyz3iMyN3', u'read': 0, u'msgid':
u'36659a4453e12a085d8fbfeefc58da8fb23f38bfb0984c2983e0ddc31c776038',
u'receivedTime': u'1377986524', u'message':
u'dGVzdGluZyAxIDIgMw0KDQotLQ0KSm9obiBQZXJyeQ0KDQo=\n', u'encodingType':
2, u'subject': u'bWVzc2FnZSAx\n'}, {u'fromAddress':
u'BM-2DBYkhiBZCyrBa8J7gNBrngtgttHgPtMvwQ', u'toAddress':
u'BM-2DC7SCTj2gzgrGgMvUCARdCrfthyz3iMyN3', u'read': 0, u'msgid':
u'2ebe10c788ed47c6c122e3b43ae6642cb15077536c7056ed5088ab2d339c4630',
u'receivedTime': u'1377986557', u'message':
u'VGhpcyBpcyB0aGUgbmV4dCB0ZXN0DQoNCi0tDQpKb2huIFBlcnJ5DQoNCg==\n',
u'encodingType': 2, u'subject': u'dGVzdGluZyAzIDQgNQ==\n'},
{u'fromAddress': u'BM-2DBYkhithgyhyrBa8J7gNBrnSGqtHgPtMvwQ',
u'toAddress': u'BM-2DC7SCTj2gzgrtgtgMvUCARdCogLyz3iMyN3', u'read': 0,
u'msgid':
u'91dffd421c898aab0ffc43a363869a580abec6fa851aa6cf7cefe98263f96c81',
u'receivedTime': u'1377986599', u'message':
u'VGhpcyBpcyB0aGUgM3JkIHRlc3QNCg0hjj0NCkpvaG4gUGVycnkNCg0K\n',
u'encodingType': 2, u'subject': u'dGhpcyBpcyB0aGUgM3Jk\n'}]}

I tried using the following code:

data = json.loads(api.getAllInboxMessages) # This is the API call

for messageSender in data['inboxMessages']['fromAddress']
print messageSender

For some reason (probably obvious reasons) isn't working. I'm trying to
loop through the JSON and return all of the fromAddress fields.

Can anyone offer suggestions?

Thanks,
Anthony
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Re: How do I process this using Python?

[Anthony Papillion]

On 08/31/2013 06:48 PM, Chris Angelico wrote:
 On Sun, Sep 1, 2013 at 9:44 AM, Anthony Papillion papill...@gmail.com wrote:
 I'm writing a processor for Bitmessage messages and I am needing to
 parse the following returned JSON string:

 {u'inboxMessages':
 
 Does the JSON string really have those u prefixes and apostrophes?
 That's not valid JSON. You may be able to use ast.literal_eval() on it
 - I was able to with the example data - but not a JSON parser. Can you
 sort out your transmission end?
 
 ChrisA

I think I remembered what the 'u' prefix is. It indicates that the data
following is a unicode string. So could that be valid JSON data wrapped
up in unicode?

Anthony


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Re: How do I process this using Python?

[Anthony Papillion]

On 08/31/2013 07:32 PM, Cameron Simpson wrote:
 On 31Aug2013 19:19, Anthony Papillion papill...@gmail.com wrote:
 | On 08/31/2013 06:48 PM, Chris Angelico wrote:
 |  On Sun, Sep 1, 2013 at 9:44 AM, Anthony Papillion papill...@gmail.com 
 wrote:
 |  I'm writing a processor for Bitmessage messages and I am needing to
 |  parse the following returned JSON string:
 | 
 |  {u'inboxMessages':
 |  
 |  Does the JSON string really have those u prefixes and apostrophes?
 |  That's not valid JSON. You may be able to use ast.literal_eval() on it
 |  - I was able to with the example data - but not a JSON parser. Can you
 |  sort out your transmission end?
 | 
 | I think I remembered what the 'u' prefix is. It indicates that the data
 | following is a unicode string. So could that be valid JSON data wrapped
 | up in unicode?
 
 How sure are you that it is JSON? It looks to me like a message
 that might once have been JSON, but has already been passed through
 json.loads() for you.
 
 What does type(the_json) say? What does repr(the_json) say?
 Print both.
 
 I would guess it has already been parsed.
 
 Cheers,

And you would be right! It's actually a dictionary!

Anthony


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Re: How do I process this using Python? (SOLVED)

[Anthony Papillion]

On 08/31/2013 07:32 PM, Chris Angelico wrote:
 On Sun, Sep 1, 2013 at 10:19 AM, Anthony Papillion papill...@gmail.com 
 wrote:
 On 08/31/2013 06:48 PM, Chris Angelico wrote:
 On Sun, Sep 1, 2013 at 9:44 AM, Anthony Papillion papill...@gmail.com 
 wrote:
 I'm writing a processor for Bitmessage messages and I am needing to
 parse the following returned JSON string:

 {u'inboxMessages':

 Does the JSON string really have those u prefixes and apostrophes?
 That's not valid JSON. You may be able to use ast.literal_eval() on it
 - I was able to with the example data - but not a JSON parser. Can you
 sort out your transmission end?

 ChrisA

 I think I remembered what the 'u' prefix is. It indicates that the data
 following is a unicode string. So could that be valid JSON data wrapped
 up in unicode?
 
 No; JSON already supports Unicode. What you may have is an incorrect
 JSON encoder that uses Python's repr() to shortcut its work - but it's
 wrong JSON.
 
 But bitmessage seems to be written in Python. Can you simply access
 the objects it's giving you, rather than going via text strings?
 
 ChrisA

Once I looked at the data in a better structured way and saw it in the
proper type it became clear. Here is my solution:

data = json.loads(api.getAllInboxMessages())
for message in data['inboxmessages']:
print message['fromAddress']

Yep, it was that simple. Thanks for the help guys! I appreciate how fast
everyone responded.

Anthony


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Re: Question about crypto

[Anthony Papillion]

On 08/18/2013 05:29 PM, Skip Montanaro wrote:
 When I run the code above, I am told that the IV must be 16 bytes long.
 I'm assuming that the IV (I know that means Initialization Vector) is
 either the key OR something else I can set. But I don't know how or what
 to do.
 
 Does this Stack Overflow thread help?  It looks to me like you aren't
 defining an initialization vector at all.
 
 http://stackoverflow.com/questions/14716338/pycrypto-how-does-the-initialization-vector-work

Completely missed that Stack Overflow discussion. Thanks, Skip! That
does help!

Anthony


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Re: Question about crypto

[Anthony Papillion]

On 08/18/2013 05:52 PM, Roy Smith wrote:
 In article mailman.6.1376863028.19984.python-l...@python.org,
  Anthony Papillion papill...@gmail.com wrote:
 
 I've just started working with the Crypto library and I've already run
 into a wall even though I'm following a tutorial. Basically, I'm trying
 to encrypt a string using AES in CBC mode. Here is the code:

 from Crypto import AES
 
 You don't say exactly what module you're using.  I'm assuming 
 https://www.dlitz.net/software/pycrypto/api/current/, yes?

snip

Thank you, Roy, this was very helpful. You're right, I was confusing key
size with the IV and I was tying the two together in an inappropriate
(wrong) way.

Thanks again!
Anthony


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Question about crypto

[Anthony Papillion]

I've just started working with the Crypto library and I've already run
into a wall even though I'm following a tutorial. Basically, I'm trying
to encrypt a string using AES in CBC mode. Here is the code:

from Crypto import AES
import hashlib

text_to_encrypt = 'This is a super secret encrypted message, yo!'
key = '0123456789abcdef'
mode = AES.MODE_CBC
encryptor = AES.new(key, mode)

ciphertext = encryptor.encrypt(text)

When I run the code above, I am told that the IV must be 16 bytes long.
I'm assuming that the IV (I know that means Initialization Vector) is
either the key OR something else I can set. But I don't know how or what
to do.

Does anyone see what is wrong with the code above and could suggest ways
to make it work? I've spent the last 45 minutes googling around and
nothing comes up specific to my problem.

Thanks,
Anthony
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Question about function failing with large number

[Anthony Papillion]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

So I'm using the function below to test a large (617 digit) number for
primality. For some reason, when I execute the code, I get an error
telling me:

OverflowError: long int too large to convert to float

The error is being thrown on this line:

for x in range(3, int(n**0.5)+1, 2):

The odd thing is that the error is not thrown every single time. I can
run the function a few times, it will generate a large number (always
the same length) and run it through the function. After I do this a
few times, it fails with the error. I might get the error on the next
few runs but then, all of a sudden, it functions again.

Any ideas? The entire program, including the method, is below.

#!/usr/bin/env python

from random import getrandbits

bits = 2048

# Test if the number is a prime
def isprime(n):

# make sure n is a positive integer
n = abs(int(n))
# 0 and 1 are not primes
if n  2:
return False
# 2 is the only even prime number
if n == 2:
return True
# all other even numbers are not primes
if not n  1:
return False
# range starts with 3 and only needs to go up the   
squareroot  of  n
# for all odd numbers
for x in range(3, int(n**0.5)+1, 2):
if n % x == 0:
return False
return True

a = getrandbits(bits)
print \nGenerated Number: , a, \n
print Number of digits: , len(str(a))
isNumberPrime = isprime(a)
if isNumberPrime == True:
print \nThis number is a prime.\n
else:
print \nThis number is not a prime.\n

Thanks!
Anthony


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Phone:   1.918.533.9699
SIP: 17772098...@in.callcentric.com
XMPP:cypherp...@patts.us

www.cajuntechie.org
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OK, I lied, I do have another question...

[Anthony Papillion]

Hi Everyone,

So I've used Glade to build a simple UI and I'm loading it with
gtkBuilder. The UI loads fine but, for some reason, none of my signals
are being connected. For example, in Glade, I said when the button
called btnExit was clicked, execute the btnExit_clicked method. Then, in
my App() class definition, I defined btnExit_clicked(self, widget) and
simply added the gtk.main_quit() statement (to exit). But when I start
my app, I am told that the btnExit_clicked() method isn't defined. This
happens for every single signal I define.

I'm assuming I'm simply putting something in the wrong place so can
anyone have a look at this and tell me what that might be? It looks
almost identical to examples I've seen on the net.  Thanks!

CODE:

class App:
def __init__(self):
builder = gtk.Builder()
builder.add_from_file('bcbackup.ui')
builder.connect_signals({on_window_destroy : gtk.main_quit,
on_btnExit_clicked : btnExit_clicked})
self.window = builder.get_object(winMain)
self.window.show()

def btnSaveInformation_clicked(self, widget):
pass

def btnExit_clicked(self, widget):
gtk.main_quit()

if __name__ == __main__:
myApp = App()
gtk.main()

END CODE

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Re: Wgy isn't there a good RAD Gui tool fo python

[Anthony Papillion]

As someone who was a Visual Studio user for many years, I felt much
the same way you do when I made the jump to Python on Linux last year.
But then I discovered Glade and am quite satisfied.

Glades UI design paradigm is a little different than that of VS but
it's not so hard that you couldn't learn it in a week. It's very
usable, pretty easy to learn, and doesn't cost you a penny.

If you've not already, I recommend you check out Glade. I think it's
probably what you're looking for.

Anthony

On 7/10/11, Ivan Kljaic iklj...@gmail.com wrote:
 Ok Guys. I know that most of us have been expiriencing the need for a
 nice Gui builder tool for RAD and most of us have been googling for it
 a lot of times. But seriously. Why is the not even one single RAD tool
 for Python. I mean what happened to boa constructor that it stopped
 developing. I simply do not see any reasons why there isn't anything.
 Please help me understand it. Any insights?
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Advanced Data Concepts
Get real about your software/web development and IT Services
Phone: (918) 919-4624

Does your business need to reduce its phone bill? I can help!
Email me and ask me how!
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How to get or set the text of a textfield?

[Anthony Papillion]

Hi Everyone,

So I've built a UI with Glade and have loaded it using the standard
Python code. In my UI, I have a textfield called txtUsername. How do I
get and set the text in this field from my Python code?

Thanks!
Anthony

-- 
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Advanced Data Concepts
Get real about your software/web development and IT Services
Phone: (918) 919-4624

Does your business need to reduce its phone bill? I can help!
Email me and ask me how!
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Re: How to get or set the text of a textfield? - SOLVED

[Anthony Papillion]

 I don't know anything about Glade, so I can't answer your question
 definitively.  However, as a general rule, you can use the dir() builtin
 function to see what methods are defined by an object.

Hi John,

Thanks for the input and it looks like it's pretty simple. Basically, I
can access the properties of objects like:

self.objectname.property_or_method()

So, to solve my question, I'd just use:

self.txtUsername.set_text('Whatever I want')

or

enteredText = self.txtUsername.get_text()

Pretty simple and this actually solves ALL of my Glade problems. I'm
excited.

Thanks for the direction!

Anthony
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Why are my signals being ignored?

[Anthony Papillion]

Hello Everyone,

So I figured out the last problem about why I couldn't load my UI files but
now I've got something that has be totally stumped. I've worked on it most
of the day yesterday, Google'd it, and fought with it today and I'm
admitting defeat and coming to the group with hat in hand asking for help.

For some reason, in the code below, my signals are being completely ignored.
For example, you'll notice that I connected the 'btnExit' to the method
called 'clickedButton()' but, for some reason, when the button is clicked,
the method is never called. I've been following tutorials and this seems to
be the proper way to wire signals yet mine simply don't work.

Would anyone be so kind as to look over the following code and give me a bit
of advice (or direction) as to what I might be doing wrong?

Thanks!
Anthony

Code:

#!/usr/bin/env python

import sys

try:
import pygtk
 pygtk.require(2.0)
except:
print Error. PYGTK could not be loaded.
 sys.exit(1)
try:
import gtk
import gtk.glade
except:
print GTK not present or not loaded.
sys,exit(1)
 class TestClass(object):
 def __init__(self):
 self.uiFile = MainWindow.glade
self.wTree = gtk.Builder()
self.wTree.add_from_file(self.uiFile)
 self.window = self.wTree.get_object(winMain)
if self.window:
 self.window.connect(destroy, gtk.main_quit)
 dic = { on_btnExit_clicked : self.clickButton, on_winMain_destroy :
gtk.main_quit }
 self.wTree.connect_signals(dic)
self.window.show()
else:
 print Could not load window
sys.exit(1)
  def clickButton(self, widget):
print You clicked exit!
  def exit(self, widget):
 gtk.main_quit()
 def update_file_selection(self, widget, data=None):
 selected_filename = FileChooser.get_filename()
print selected_filename
 if __name__ == __main__:
Tester = TestClass()
gtk.main()
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Simple question about loading a .glade UI file

[Anthony Papillion]

Hi Everyone,

So I'm tackling designing a non-CLI program using Glade. I went through some
tutorials and it seems like I'm doing things right but I'm my UI won't load.
Python keeps griping about could not create glade XML object.

I have a .glade file called MainWindow.glade and my main window is called
(predictably) winMain. Here is the code I'm using to load it:

#!/usr/bin/env python
import sys
try:
import pygtk
pygtk.require(2.0)
except:
pass

try:
import gtk
import gtk.glade
except:
print GTK could not be loaded.
sys.exit(1)

class GMB:

def __init__(self):
self.gladefile = MainWindow.glade
 self.wTree = gtk.glade.XML(self.gladefile)
self.wTree.signal_autoconnect(self)
 self.window = self.wTree.get_widget(winMain)
if(self.window):
self.window.connect(destroy, gtk.main_quit)

def on_winMain_delete(self, widget, dummy):
gtk.main_quit()

if __name__ == __main__:
myGui = GMB()
gtk.main()

Is there any reason why I'd be getting this error from the code above? Both
the UI file and the source code file are in the same directory.

Thanks!
Anthony
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Re: New member intro and question

[Anthony Papillion]

Just wanted to thank you guys for taking the time to respond. Looks like my
'limited resources' aren't so limited after all!

Cheers,
Anthony
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New member intro and question

[Anthony Papillion]

Hi Everyone,

gush
I'm a new list member from the United States. Long time programmer,
fairly new to Python and absolutely loving it so far! I'm 36, live in
Oklahoma, and own a small Linux software development and consulting
firm. Python has made my life a *lot* easier and, the more I learn,
the easier it gets. Simply blown away.
/gush

Now, for my question: I'm taking on a project that will run on plug
computers and I'm thinking about using Python to do it. It seems like
a really attractive option over C/C++ and I think it would cut down
the dev time immensely. I know a scaled down version of Debian can run
on the computer but I'm wondering about Python.

Has anyone ever used Python to develop for extremely limited resource
computers like this? Specifically, I'm going to be using the DreamPlug
(http://www.geek.com/articles/gadgets/dreamplug-puts-a-1-2ghz-arm-pc-in-a-power-outlet-2011022/)
which isn't too shabby but I wonder if it will work.

Thanks!
Anthony Papillion
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Redirecting STDOUT to a Python Variable

[Anthony Papillion]

I'm writing an application that uses the Google Storage Python
library.  When an error occurs, the error is printed on the terminal.
What I need to do is intercept that text into a variable so I can run
a re.search() against it and find out what's going on.

I thought doing a output_text = method_name(parameters) would stuff
the output in the output_text variable but it doesn't.

How can I accomplish this?
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TkInter bind() event is not firing event trigger

[Anthony Papillion]

So I want to execute some code when the user double clicks an item in
a ListBox. The documentation says I should use the listbox.bind()
method, specifying the Double-l event to detect the double left mouse
button click. My code is this:

gsItems = Listbox(root, width=76, height=30, selectmode=browse,
yscroll=scrollBar.set)
gsItems.bind('Double-l', openandDisplayFolder)
gsItems.pack()

So the first line configures the Listbox, second line SHOULD set up
the event, and third line, of course, adds the Listbox to the UI.

The problem is that the openandDisplayFolder function is never
executed. The function is VERY simple for now while I learn the way to
do it:

def openandDisplayFolder(event):
tkMessageBox.showinfo(Event Fired, An item has been double
clicked!)

I've also removed the (event) parameter just in case and tried it and
it makes no difference. What am I doing wrong here?

Thanks!
Anthony
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Re: tkInter Listbox question

[Anthony Papillion]

Thank you, RantingRick and EB303. Much appreciated and it looks like
it works fine now. Still learning but I am amazed every single day how
simple Python is!

Thanks Again,
Anthony Papillion
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tkInter Listbox question

[Anthony Papillion]

So I'm trying to add a Listbox to my window. I want it to be the width
of my window and the height of my window.  I'm using the following
code ('root' is my toplevel window):

gsItems = Listbox(root, width=root.winfo_width(),
height=root.winfo_height())
gsItems.pack()

While you would think this code would set the height and width of
gsItems to the height and width of root, it doesn't. Instead it puts a
little tiny listbox in the middle of the form.

I've been Googling for almost an hour. Can anyone help me figure this
out? Point me in the right direction?

Thanks!
Anthony
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Python on Android Mobile?

[Anthony Papillion]

I know Python is growing in popularity and some of Palms devices
already let you run Python apps in a VM environment.  I'm wondering if
anyone knows (or can make an educated guess) if there are any plans
for Python to come to the Android environment?  I'm not talking
backend stuff here but full front and center like full GTK or WX
development for the devices?

Any thoughts?
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Re: Community (A Modest Proposal)

[Anthony Papillion]

 Why was the reaction so negative? Well i will admit some fault in the
 fact that i trashed Ruby pretty bad. I felt everything i said was true
 IMO then as is now (mostly). People should have a right to opinions.
 However since i was such an unknown and you could say a newbie,
 was this reaction warranted? I think not, and it speaks volumes to the
 negative attitudes within this community.

While I'm not new to software development in other languages, I'm
completely new to Python and the Python community.  I've only been
here about a week and have asked some pretty elementary questions
during that time only to be greeted respectfully and offered help.
From reading the posts on this group, it seems like the Python
community is much like any other programming (or even just volunteer
community): they're helpful if you show you're willing to do the work
yourself and if you show you've at least tried to solve the problem
yourself to a degree (even if you've failed).  Volunteer communities
have little patience for the 'do it for me' mindset as *everyone* is
busy with jobs, life, and their own pet projects.

Overall, I couldn't disagree with you more. I find most communities
(and the c.l.p community in particular) *very* accessible and very
helpful. On the other hand, I *could* see how your post could scare
off newbies from jumping in for fear of being 'attacked' as you say
you were. IMHO, your posts serves no purpose but to hurt the community
and scare away newbies.

Anthony Papillion
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Re: Python on Android Mobile?

[Anthony Papillion]

Thank you gentleman for your input. I'm starting to look at Python/GTK
for desktop development and was hoping there might also be something
for Android. Oh well, like Simon said (pardon the pun), it is open
source so... :-)

Anthony
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Re: What's the difference?

[Anthony Papillion]

Thank you Emile and Thomas! I appreciate the help. MUCH clearer now.
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What's the difference?

[Anthony Papillion]

Someone helped me with some code yesterday and I'm trying to
understand it. The way they wrote it was

subjects = (info[2] for info in items)

Perhaps I'm not truly understanding what this does. Does this do
anything different than if I wrote

for info[2] in items
   subject = info[2]

Thanks!
Anthony
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Re: Question about NNTPLib

[Anthony Papillion]

 I just had a quick look at the documentation. It looks like you should
 re-read it.http://docs.python.org/py3k/library/nntplib.html#nntplib.NNTP.xhdr

snip

Thank you for the help Thomas. I did reread the doc and I see what you
mean. I think this will work now. Much thanks for the help!

Anthony
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Another nntplib Question

[Anthony Papillion]

Hello Everyone,

Thanks to help from this group, my statistical project is going very
well and I'm learning a LOT about Python as I go. I'm absolutely
falling in love with this language and I'm now thinking about using it
for nearly all my projects.

I've run into another snag with nntplib I'm hoping someone can help me
with. I'm trying to get a list of newsgroups from the server. The
documentation for the list() method tells me it returns a response
(string) and a list (tuple).

The list tuple contains the following: groupname, last, first, flag.
So, thinking I could access the group name in that list like this
ThisGroup = groupname[1].

Now, along those lines, I am wanting to retrieve some information
about each group in the list so I thought I could do this:

resp, groupinfo = server.list()
group = (info[1] for info in groupinfo)
resp, count, first, last, name = server.group(group)

But Python throws a TypeError and tells me I can't concatenate str
and generator objects'.

What am I doing wrong? I've been banging my head on this for a few
hours and simply can't get it right. I've even googled for an example
and couldn't find one that showed how to deal with this.

Can anyone help?

Thanks in advance!
Anthony
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Re: Another nntplib Question

[Anthony Papillion]

Thomas,

You have been my savior on this journey twice now and I appreciate it.
What you did totally makes sense (and I had forgotten the list was
zero based) and I'm going to try it out right now.  Thank you SO much
for your patience. I'm coming from a near pure .NET and PHP background
so I'm still running into little 'gotchas' with Python. On my way
though, I hope. lol

Thanks again!
Anthony

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Question about NNTPLib

[Anthony Papillion]

I'm new to NNTPLib (and Python) and I'm experiencing some behavior I
can't understand. I'm writing a program to analyze newsgroup subject
which will then produce statistics on topics discussed. For my
example, I'm using this group (comp.lang.python) and trying to simply
print out all of the subjects listed in the group.

This is the code I'm using:

resp, count, first, last, name = server.group('comp.lang.python')
resp, items = server.xover(first, last)

for subject in items:
resp, subject = server.xhdr('subject', first, last)
print subject

While the loop will indeed LOOP through all of the items, the print
statement generates unprintable character (they look like [] in the
terminal window.

What am I doing wrong? I've looked at the doc and it looks like this
is how I'd call it. Am I missing something?

Thanks!
Anthony
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Re: Question about NNTPLib

[Anthony Papillion]

Hi Tim,

Tried both and neither works. While I really believe it's simply the
wrong code, I'm wondering if my news server might be throwing
something invalid into the header or not conforming to RFC standards.
Thanks for taking a shot at this anyway though.

Anyone have any other thoughts on why this isn't working?
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Re: Importing modules

[Anthony Papillion]

On Jun 6, 10:16 pm, Ben Finney ben+pyt...@benfinney.id.au wrote:
 Anthony Papillion papill...@gmail.com writes:
  import os

  os.path.append('$HOME/gsutils/boto')

  thinking I could then successfully do the import boto statement.
  Nope.

 You'll need to give the literal path. Substitution of environment
 variables isn't performed implicitly in strings.

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 _o__)                                                                  |
 Ben Finney

Hi Ben,

Thanks for the help! I'd misread the thread and thanked Chris while
ignoring you. Much thanks to you for the help. Worked like a charm.
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Importing modules

[Anthony Papillion]

Hello Everyone,

I'm brand new to Python and have been finding it really easy to get
into. But I've run into my very first problem that I'm hoping someone
here might be able to help me with.

I'm working with the Google Storage API and all of their Python
library is under a directory called $HOME/gsutils/boto

To begin my Python script, I'm support to import boto but that doesn't
work because boto isn't in my search path (or my PYTHONPATH).

So I tried this:

import os

os.path.append('$HOME/gsutils/boto')

thinking I could then successfully do the import boto statement.
Nope.

Can anyone give me some direction on the correct way to import
modules?

Thanks!
Anthony
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Re: Importing modules

[Anthony Papillion]

On Jun 6, 10:33 pm, Chris Rebert c...@rebertia.com wrote:
 On Sun, Jun 6, 2010 at 8:16 PM, Ben Finney ben+pyt...@benfinney.id.au wrote:
  Anthony Papillion papill...@gmail.com writes:

  import os

  os.path.append('$HOME/gsutils/boto')

  thinking I could then successfully do the import boto statement.
  Nope.

  You'll need to give the literal path. Substitution of environment
  variables isn't performed implicitly in strings.

 Also, that should be sys.path.append(); os.path is an unrelated module
 that has no `append` function. You'll need to import sys instead of os
 obviously.

 Cheers,
 Chris
 --http://blog.rebertia.com

Hi Chris,
Thanks for saving me (again). I appreciate the help. While the
os.path.append() was a typo (I really had sys.path.append()), the
substitution was what was killing me.  Thanks for the help! I owe you
a beer.

Anthon
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