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How to properly assert that an exception gets raised in pytest?
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platform linux2 -- Python 2.7.6 -- py-1.4.26 -- pytest-2.6.4
collected 7 items
test.py ..FF..F
=================================================================================================== FAILURES =====================================...
How to execute XPath one-liners from shell?
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One package that is very likely to be installed on a system already is python-lxml. If so, this is possible without installing any extra package:
python -c "from lxml.etree import parse; from sys import stdin; print '\n'.join(parse(stdin).xpath('//element/@attribute'))"
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How do I run all Python unit tests in a directory?
I have a directory that contains my Python unit tests. Each unit test module is of the form test_*.py . I am attempting to make a file called all_test.py that will, you guessed it, run all files in the aforementioned test form and return the result. I have tried two methods so far; both have fail...
wget/curl large file from google drive
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I wrote a Python snippet that downloads a file from Google Drive, given a shareable link. It works, as of August 2017.
The snipped does not use gdrive, nor the Google Drive API. It uses the requests module.
When downloading large fi...
Convert a list of characters into a string
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This works in many popular languages like JavaScript and Ruby, why not in Python?
>>> ['a', 'b', 'c'].join('')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'list' object has no attribute 'join'
Strange enough, in Python the join m...
How to check if a python module exists without importing it
I need to know if a python module exists, without importing it.
13 Answers
13
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Sound alarm when code finishes
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This doesn't appear to work through ipython/Jupyter
– Kyle Barron
Nov 15 '19 at 22:57
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How to print colored text in Python?
How can I output colored text to the terminal in Python?
46 Answers
46
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How to list only top level directories in Python?
...os.walk
Use os.walk with next item function:
next(os.walk('.'))[1]
For Python <=2.5 use:
os.walk('.').next()[1]
How this works
os.walk is a generator and calling next will get the first result in the form of a 3-tuple (dirpath, dirnames, filenames). Thus the [1] index returns only the dir...
How can I beautify JavaScript code using Command Line?
...be a moving target. Now the info on jsbeautifier site says it's written in python.
– seth
Apr 26 '11 at 3:57
update fo...