Hi,
I am new to Python. Weeks ago, I was asked about Python questions on an
interview.
Now I want to learn Python, but I do not know what I can do with it on a PC.
Especially I would like to do something interesting instead of some text search
etc.
Python may can do more than I realize now.
Hi,
I am learning a Python Tool from web:
http://www.ohwr.org/projects/hdl-make/wiki/Quick-start-new
I download the program to Ubuntu 12.04. I find that in the folder it is shown as
hdlmake-v1.0, 37.8 KB Python Script. I remember that script file can be loaded
to an editor to read its content.
Hi,
I just begin to learn Python. I do not see the usefulness of '*' in its
description below:
The first metacharacter for repeating things that we'll look at is *. * doesn't
match the literal character *; instead, it specifies that the previous character
can be matched zero or more times,
Hi,
I type the following sample codes on Python, but it echoes differently.
Regular expressions are compiled into pattern objects, which have methods for
various operations such as searching for pattern matches or performing string
substitutions.
import re
p = re.compile('ab*')
p
On Sunday, July 6, 2014 8:54:42 AM UTC-4, Tim Chase wrote:
On 2014-07-06 05:13, rxjw...@gmail.com wrote:
What I get on Python console:
$ python
Python 2.7.5 (default, Oct 2 2013, 22:34:09)
[GCC 4.8.1] on cygwin
Type help, copyright, credits or license for more
On Sunday, July 6, 2014 10:18:53 AM UTC-4, Rick Johnson wrote:
On Sunday, July 6, 2014 8:38:41 AM UTC-5, rxj...@gmail.com wrote:
When I get match result:
pypattern='abcd'
pyprog = re.compile(pattern)
pystring='abcd'
pyresult = prog.match(string)
pyresult
_sre.SRE_Match
Hi,
I cannot get the difference between matchObj.group() and matchObj.group(0),
Although there definitions are obvious different. And group() mentions 'tuple'.
tuple means all the elements in line object?
Match Object Methods
Description
group(num=0) This method returns entire match (or
Hi,
On Python website, it says that the following match can reach 'abcb' in 6 steps:
.
A step-by-step example will make this more obvious. Let's consider the
expression
a[bcd]*b. This matches the letter 'a', zero or more letters from the class
[bcd],
and finally ends with a 'b'.
On Sunday, July 6, 2014 4:32:14 PM UTC-4, Larry Hudson wrote:
On 07/06/2014 08:03 AM, rxjw...@gmail.com wrote:
snip
Thanks. I do not want to waste everyone's time. For a jump start, there are
small errors making me frustrating. Your help does help me, confirm the
usage
etc.
On Sunday, July 6, 2014 3:26:44 PM UTC-4, Ian wrote:
On Sun, Jul 6, 2014 at 12:57 PM, rxjw...@gmail.com wrote:
I write the following code:
...
import re
line = abcdb
matchObj = re.match( 'a[bcd]*b', line)
if matchObj:
print matchObj.group() : ,
Hi,
I learn this short Python code from:
http://www.tutorialspoint.com/python/python_reg_expressions.htm
but I still do not decipher the meaning in its line, even after read its command
explanation.
It says that:
re.M:
Makes $ match the end of a line (not just the end of the string) and
On Monday, July 7, 2014 10:46:19 AM UTC-4, Steven D'Aprano wrote:
On Mon, 07 Jul 2014 07:08:53 -0700, rxjwg98 wrote:
More specific, what does 're.M' means?
Feel free to look at it interactively. re.M is a flag to control the
meaning of the regular expression. It is short
On Monday, July 7, 2014 10:46:19 AM UTC-4, Steven D'Aprano wrote:
On Mon, 07 Jul 2014 07:08:53 -0700, rxjwg98 wrote:
More specific, what does 're.M' means?
Feel free to look at it interactively. re.M is a flag to control the
meaning of the regular expression. It is short
On Monday, July 7, 2014 10:46:19 AM UTC-4, Steven D'Aprano wrote:
On Mon, 07 Jul 2014 07:08:53 -0700, rxjwg98 wrote:
More specific, what does 're.M' means?
Feel free to look at it interactively. re.M is a flag to control the
meaning of the regular expression. It is short
On Sunday, July 6, 2014 8:09:57 AM UTC-4, Devin Jeanpierre wrote:
On Sun, Jul 6, 2014 at 4:51 AM, rxjw...@gmail.com wrote:
Hi,
I just begin to learn Python. I do not see the usefulness of '*' in its
description below:
The first metacharacter for repeating
Hi,
It says that: match checks for a match only at the beginning of the string.
Then, it also says that: \1...\9Matches nth grouped subexpression.
I don't know how to write a script to include grouped subexpression in match?
Thanks,
--
Hi,
On a tutorial it says that '\s': Matches whitespace. Equivalent to [\t\n\r\f].
I test it with:
re.match(r'\s*\d\d*$', ' 111')
_sre.SRE_Match object at 0x03642BB8
re.match(r'\t\n\r\f*\d\d*$', ' 111')# fails
re.match(r'[\t\n\r\f]*\d\d*$', ' 111') # fails
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