Re: [Tutor] python2 vs python3 urllib
On 11-04-23 06:58 PM, pierre dagenais wrote:
The following code works as expected with python version 2.6.5, but
with version 3.1.2 I get the following error:
pierre:/MyCode/mesProjets$ py3 test.py
Traceback (most recent call last):
File "test.py", line 3, in
sock = urllib.urlopen("http://diveintopython.org/";)
AttributeError: 'module' object has no attribute 'urlopen'
The code:
#example 8.5 of diveintopython.org/
import urllib
sock = urllib.urlopen("http://diveintopython.org/";)
htmlSource = sock.read()
sock.close()
print (htmlSource)
What is the proper syntax in version 3?
Thank you,
Your help is much appreciated.
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Thank you everybody,
The short answer was of course:
import urllib.request
instead of :
import urllib
I realize I'm still confused about packages, libraries, modules,
classes, etc...
Right now they're all more or less the same to me. I've got some reading
to do.
Thanks again,
Pierre
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Re: [Tutor] python2 vs python3 urllib
i strongly recommend you consider using the 2to3 tool if porting apps
from 2.x to 3.x... it will show you much more than you may think.
here's the output from the 2.7 version of 2to3:
$ 2to3 test.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skipping implicit fixer: ws_comma
RefactoringTool: Refactored test.py
--- test.py (original)
+++ test.py (refactored)
@@ -1,5 +1,5 @@
-import urllib
-sock = urllib.urlopen("http://diveintopython.org/";)
+import urllib.request, urllib.parse, urllib.error
+sock = urllib.request.urlopen("http://diveintopython.org/";)
htmlSource = sock.read()
sock.close()
print (htmlSource)
RefactoringTool: Files that need to be modified:
RefactoringTool: test.py
it shows you the diffs, and if you use the -w option, it will
overwrite (and backup) the 2.x version.
hope this helps!
-- wesley
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
"Core Python", Prentice Hall, (c)2007,2001
"Python Fundamentals", Prentice Hall, (c)2009
http://corepython.com
wesley.chun : wescpy-gmail.com : @wescpy
python training and technical consulting
cyberweb.consulting : silicon valley, ca
http://cyberwebconsulting.com
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Re: [Tutor] python2 vs python3 urllib
"pierre dagenais" wrote
sock = urllib.urlopen("http://diveintopython.org/";)
AttributeError: 'module' object has no attribute 'urlopen'
What is the proper syntax in version 3?
using help() shows that urllib has become a package in v3.
The request module looked promising and sure enough
import urllib.request as req
help(req)
shows:
urlopen(url, data=None, timeout=)
urlretrieve(url, filename=None, reporthook=None, data=None)
HTH,
--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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Re: [Tutor] python2 vs python3 urllib
On Sat, Apr 23, 2011 at 11:58 PM, pierre dagenais wrote:
> The following code works as expected with python version 2.6.5, but with
> version 3.1.2 I get the following error:
>
> pierre:/MyCode/mesProjets$ py3 test.py
>
> Traceback (most recent call last):
> File "test.py", line 3, in
> sock = urllib.urlopen("http://diveintopython.org/";)
> AttributeError: 'module' object has no attribute 'urlopen'
>
> The code:
>
> #example 8.5 of diveintopython.org/
> import urllib
> sock = urllib.urlopen("http://diveintopython.org/";)
> htmlSource = sock.read()
> sock.close()
> print (htmlSource)
>
> What is the proper syntax in version 3?
The problem is described in the exception - the module "urllib" has no
method urlopen. Things were moved around in 3.0. In fact,
diveintopython has some information on this here -
http://diveintopython3.org/porting-code-to-python-3-with-2to3.html#urllib
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[Tutor] python2 vs python3 urllib
The following code works as expected with python version 2.6.5, but with
version 3.1.2 I get the following error:
pierre:/MyCode/mesProjets$ py3 test.py
Traceback (most recent call last):
File "test.py", line 3, in
sock = urllib.urlopen("http://diveintopython.org/";)
AttributeError: 'module' object has no attribute 'urlopen'
The code:
#example 8.5 of diveintopython.org/
import urllib
sock = urllib.urlopen("http://diveintopython.org/";)
htmlSource = sock.read()
sock.close()
print (htmlSource)
What is the proper syntax in version 3?
Thank you,
Your help is much appreciated.
___
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