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Difference between except: and except Exception as e: in Python
...ing to watch out for" looks a little weird now, but at the time I expected Python to pick the most specific except block, regardless of where it was, and was a little disappointed to find out otherwise.
– Vanessa Phipps
Sep 5 '14 at 15:37
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Using print statements only to debug
I have been coding a lot in Python of late. And I have been working with data that I haven't worked with before, using formulae never seen before and dealing with huge files. All this made me write a lot of print statements to verify if it's all going right and identify the points of failure. But, ...
List attributes of an object
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The issue of dict usage just showed up on r/python. someone pointed out that vars(a) is equivalent to a.__dict__
– David
Jan 12 '13 at 5:15
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Remove a character from the end of a variable
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realpath is a part of GNU coreutils which is de facto in linux distribution and in this case users may have installed different external packages which can break the portability
– amenzhinsky
Jul 11 '14 at 8:46
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When I catch an exception, how do I get the type, file, and line number?
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@DanielPryden Python docs are also using the same unpacking method docs.python.org/2/library/traceback.html#traceback-examples
– user
Aug 7 '14 at 3:49
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Change R default library path using .libPaths in Rprofile.site fails to work
...two that matter for storing and accessing packages are (now different on a Linux box):
R_LIBS_SITE /usr/local/lib/R/site-library:/usr/lib/R/site-library:/usr/lib/R/library
R_LIBS_USER /home/david/R/x86_64-pc-linux-gnu-library/3.5.1/
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Pros and cons to use Celery vs. RQ [closed]
Currently I'm working on python project that requires implement some background jobs (mostly for email sending and heavily database updates). I use Redis for task broker. So in this point I have two candidates: Celery and RQ . I had some experience with these job queues, but I want to ask you guy...
How to make IPython notebook matplotlib plot inline
I am trying to use IPython notebook on MacOS X with Python 2.7.2 and IPython 1.1.0.
10 Answers
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UnicodeDecodeError, invalid continuation byte
...>>> u'\xe9'.encode('latin-1')
b'\xe9'
(Note, I'm using a mix of Python 2 and 3 representation here. The input is valid in any version of Python, but your Python interpreter is unlikely to actually show both unicode and byte strings in this way.)
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How to retrieve a user environment variable in CMake (Windows)
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You need to have your variables exported. So for example in Linux:
export EnvironmentVariableName=foo
Unexported variables are empty in CMAKE.
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