from:"subhabrata . banerji"

Logical Query JSON

2015-07-30 Thread subhabrata . banerji

Dear Group, 

I am trying to query JSON with Logical operators. 

I tried to experiment lot with it, but could not do much. 
I came many times pretty close but missed it almost. 

I tried to experiment with json, jsonquery, jsonschema, jsonpipe, objectpath, 
requests. 

I got a good example from 
http://www-01.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/com.ibm.db2z11.doc.json/src/tpc/db2z_jsonlogicaloperators.dita
 

But I was looking for one or two worked out examples to start with. 

I am using Python2.7+ on Windows 7 with IDLE as GUI. 

I am trying and if anybody of the esteemed members may kindly help me with. 

  

Regards, 
Subhabrata Banerjee. 
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Logical Query in Python

2015-07-30 Thread subhabrata . banerji

Dear Group,

I am trying to query JSON with Logical operators. 

I tried to experiment lot with it, but could not do much. 
I came many times pretty close but missed it almost. 

I tried to experiment with json, jsonquery, jsonschema, jsonpipe, objectpath, 
requests. 

I got a good example from 
http://www-01.ibm.com/support/knowledgecenter/SSEPEK_11.0.0/com.ibm.db2z11.doc.json/src/tpc/db2z_jsonlogicaloperators.dita

But I was looking for one or two worked out examples to start with. 

I am using Python2.7+ on Windows 7 with IDLE as GUI. 

I am trying and if anybody of the esteemed members may kindly help me with.

 

Regards,
Subhabrata Banerjee. 


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Re: Logical Query JSON

2015-07-30 Thread subhabrata . banerji

On Thursday, July 30, 2015 at 9:20:35 PM UTC+5:30, Denis McMahon wrote:
 On Thu, 30 Jul 2015 06:32:01 -0700, subhabrata.banerji wrote:
 
  I am trying to query JSON with Logical operators.
 
 Your post was an excellent example of asking for help without explaining 
 what your problem was at all.
 
 Please:
 
 - show an example of what you tried;
 
 - give the results you expected;
 
 - show the results you actually got.
 
 COPY and PASTE the code and results, do not re-type them, or summarise
 them.
 
 I found the examples quite easy to follow to create json queries, 
 although as I don't have a db2 etc setup here iI'm unale to try feeding 
 the resulting json query into a database to see what comes out.
 
 -- 
 Denis McMahon

Dear Sir,

I am trying to quote some of my exercises below, and my objective.

(1) Exercise with objectpath: 
 from objectpath import *
 tree=Tree({a:1})
 tree.execute($.a)
1
 $
{
  a:1,
  b:{
c:[1,2,3]
  }
}
SyntaxError: invalid syntax
 x1={a:1,b:{c:[1,2,3]}}
 x1.b

Traceback (most recent call last):
  File pyshell#46, line 1, in module
x1.b
AttributeError: 'dict' object has no attribute 'b'
 x1.b
SyntaxError: invalid syntax

(2) Exercise from IBM Example:

 x1={or:[{age:4},{name:Joe}]}
 x2=x1
 print x2
{'or': [{'age': 4}, {'name': 'Joe'}]}
 x1['age']

Traceback (most recent call last):
  File pyshell#27, line 1, in module
x1['age']
KeyError: 'age'
 x1['or']
[{'age': 4}, {'name': 'Joe'}]
 x1['or']['age']

Traceback (most recent call last):
  File pyshell#29, line 1, in module
x1['or']['age']
TypeError: list indices must be integers, not str
 x1['or'][0]
{'age': 4}
 x1['or'][1]
{'name': 'Joe'}


My expectation is:

If I do AND, NOT, OR with two or more JSON values like
{age:4}, {name:Joe}, ...etc. then I should get recirprocal
results.
Considering each one as Python variable and applying logical Python
operation helps, but I am looking a smarter solution. 

Apology for indentation error. 

Regards,
Subhabrata Banerjee. 





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Re: Logical Query in Python

2015-07-30 Thread subhabrata . banerji

On Thursday, July 30, 2015 at 8:35:08 PM UTC+5:30, Steven D'Aprano wrote:
 On Thu, 30 Jul 2015 11:28 pm,  wrote:
 
  Dear Group,
  
  I am trying to query JSON with Logical operators.
 
 What does that mean?
 
  I tried to experiment lot with it, but could not do much.
  I came many times pretty close but missed it almost.
 
 Please:
 
 - show an example of what you tried;
 
 - give the results you expected;
 
 - show the results you actually got.
 
 COPY and PASTE the code and results, do not re-type them, or summarise them.
 
 
 
 
 -- 
 Steven

Dear Sir,

I redrafted it and reposted the question. This post I tried to drop but some 
how came. Please ignore this post. My reposting is with JSON. 

Regards,
Subhabrata Banerjee. 
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How may I learn Python Web Frameworks

2015-07-24 Thread subhabrata . banerji

Dear Group,

I am slightly new in Python Web Frameworks. I could learn bit of Django, Flask 
and Bottle. 
But I am looking for a good web based tutorial like Python or NLTK. 
Somehow, I did not find documentations for web frameworks are very good, one 
has to do lot of experiments even to learn basic things.
 
I am looking for a good book like Dive into Python or some good web based 
tutorials. 

I tried to search but unfortunately could not find. 

I am using Python2.7+ on Windows 7. 

If any one of the members may kindly suggest.

Regards,
Subhabrata Banerjee. 
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Search in Flask Restful

2015-07-23 Thread subhabrata . banerji

Dear Group,

I am trying to build one REST framework using Restful Flask. 
To put or get I am trying to use the requests module, as 
given in the following lines.

 var2=requests.put('http://127.0.0.1:5000/todos/todo1', data={'task': 'It is 
 my challenge'})
 var3=requests.get('http://127.0.0.1:5000/todos/todo1')

Now I like to search plain as well as Boolean over this Rest.

If I could understand the problem fine, the exercises are given 
in the following URL.

http://flask-restless.readthedocs.org/en/latest/searchformat.html#examples

But I am looking for examples with requests. I searched for help with requests 
in http://docs.python-requests.org/en/latest/, it did not help much.

If anyone of the esteemed members may kindly suggest.

I am using Python2.7+ on Windows 7. Apology for any indentation error. 


Regards,
Subhabrata Banerjee
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File Upload in Restful Flask

2015-07-20 Thread subhabrata . banerji

Dear Group,

I am trying to learn Rest framework through Restful Flask. 
My initial exercises went fine with 
https://flask-restful.readthedocs.org/en/0.3.3/quickstart.html

Now I want to upload file through Restful Flask. I tried to check the web for 
reference. 
I got these urls, 
(i) 
http://docs.python-requests.org/en/latest/user/quickstart/#post-a-multipart-encoded-file
(ii) http://stackoverflow.com/questions/28982974/flask-restful-upload-image
(iii) http://blog.luisrei.com/articles/flaskrest.html

But the question I am stuck with what are the things I have to change in the 
example of quickstart tutorial so that I may be able to upload file. Or if any 
one may kindly suggest with a small example. 

If any one of the esteemed members may kindly suggest. 

Regards,
Subhabrata Banerjee. 
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Re: File Upload in Restful Flask

2015-07-20 Thread subhabrata . banerji

On Monday, July 20, 2015 at 4:40:09 PM UTC+5:30, Simmo wrote:
 On 20/07/2015 11:13, wrote:
  Dear Group,
 
  I am trying to learn Rest framework through Restful Flask.
  My initial exercises went fine with 
  https://flask-restful.readthedocs.org/en/0.3.3/quickstart.html
 
  Now I want to upload file through Restful Flask. I tried to check the web 
  for reference.
  I got these urls,
  (i) 
  http://docs.python-requests.org/en/latest/user/quickstart/#post-a-multipart-encoded-file
  (ii) http://stackoverflow.com/questions/28982974/flask-restful-upload-image
  (iii) http://blog.luisrei.com/articles/flaskrest.html
 
  But the question I am stuck with what are the things I have to change in 
  the example of quickstart tutorial so that I may be able to upload file. Or 
  if any one may kindly suggest with a small example.
 
  If any one of the esteemed members may kindly suggest.
 
  Regards,
  Subhabrata Banerjee.
 
 
 I'm no expert on Python or REST but the example
 
url = 'http://httpbin.org/post'
files = {'file': open('report.xls', 'rb')}
 
r = requests.post(url, files=files)
r.text
  ...
 
 seems quite straightforward so I would suggest substituting your URL for 
 'http://httpbin.org' and your file name (possibly with full pathname) 
 for 'report.xls'.
 
 Give it a try and report back...
 
 Steve S

Dear Sir,

Thanks. I could change the quickstart api.py slightly. I ran your suggestion
on it. Some result seems coming but I may have to improve some portion, I am 
not getting. Please see the same.

 import requests
 url='http://127.0.0.1:5000/toworks/post'
 files = {'file': open('C:\Python27\NEWS.txt', 'rb')}
 r = requests.post(url, files=files)
 r.text
u'{\nmessage: Method Not Allowed, \nstatus: 405\n}\n'
 

Regards,
Subhabrata Banerji
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https://mail.python.org/mailman/listinfo/python-list

Re: File Upload in Restful Flask

2015-07-20 Thread subhabrata . banerji

On Monday, July 20, 2015 at 6:39:29 PM UTC+5:30, Simmo wrote:
On 20/07/2015 12:57, wrote:
On Monday, July 20, 2015 at 4:40:09 PM UTC+5:30, Simmo wrote:
On 20/07/2015 11:13, wrote:
Dear Group,

I am trying to learn Rest framework through Restful Flask.
My initial exercises went fine with
https://flask-restful.readthedocs.org/en/0.3.3/quickstart.html

Now I want to upload file through Restful Flask. I tried to check the web
for reference.
I got these urls,
(i)
http://docs.python-requests.org/en/latest/user/quickstart/#post-a-multipart-encoded-file
(ii)
http://stackoverflow.com/questions/28982974/flask-restful-upload-image
(iii) http://blog.luisrei.com/articles/flaskrest.html

But the question I am stuck with what are the things I have to change in
the example of quickstart tutorial so that I may be able to upload file.
Or if any one may kindly suggest with a small example.

If any one of the esteemed members may kindly suggest.

Regards,
Subhabrata Banerjee.

I'm no expert on Python or REST but the example

url = 'http://httpbin.org/post'
files = {'file': open('report.xls', 'rb')}

r = requests.post(url, files=files)
r.text
...

seems quite straightforward so I would suggest substituting your URL for
'http://httpbin.org' and your file name (possibly with full pathname)
for 'report.xls'.

Give it a try and report back...

Steve S

Dear Sir,

Thanks. I could change the quickstart api.py slightly. I ran your suggestion
on it. Some result seems coming but I may have to improve some portion, I
am not getting. Please see the same.

import requests
url='http://127.0.0.1:5000/toworks/post'
files = {'file': open('C:\Python27\NEWS.txt', 'rb')}
r = requests.post(url, files=files)
r.text
u'{\nmessage: Method Not Allowed, \nstatus: 405\n}\n'

Regards,
Subhabrata Banerji

OK, so that message is telling you that whatever server is sitting
behind 127.0.0.1 is not allowing you (your code) to POST to it. There
are many reasons why this could be happening. Here are a couple for you
to investigate...

- port 5000 is not not 'open' for POSTs
- your code may not have permission to POST to the server

It would help if you could tell us what OS you are using (Windows or
Linux or ...) and what server is sitting behind 127.0.0.1.

I'n not going to be around for the next 24hrs but I'm sure someone else
on the list will have some suggestions for you...

Happy bug hunting

Steve

Dear Sir,

Thanks. I am on MS-Windows 7 and I use mostly Firefox. I am checking other
issues.

Regards,
Subhabrata Banerjee.
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Combing Search Engine with REST

2015-07-10 Thread subhabrata . banerji

Dear Group,

I am trying to make a search engine. I used Whoosh to do it. 
I want to add documents to it. This is going fine. 
Now, I want to add documents in the index with REST framework.
I could learn Flask well. 
My task is to use Flask to add documents (by using put/post) to index. 
I am slightly confused how may I do it.

If any one of esteemed members of the group may suggest.

Regards,
Subhabrata Banerjee. 




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