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Python: try statement in a single line
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In python3 you can use contextlib.suppress:
from contextlib import suppress
d = {}
with suppress(KeyError): d['foo']
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Create an empty list in python with certain size
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Note that in Python3 you'll have to use list(range(n)) instead, as range() doesn't return a list but is an iterator, and that isn't faster than [None] * n.
– Skillmon likes topanswers.xyz
Feb 7 at 21...
PyLint “Unable to import” error - how to set PYTHONPATH?
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[Master]
init-hook='sys.path = ["/path/myapps/bin/", "/path/to/myapps/lib/python3.3/site-packages/", ... many paths here])'
or
[Master]
init-hook='sys.path = list(); sys.path.append("/path/to/foo")'
.. and
pylint --rcfile /path/to/pylintrc /path/to/module.py
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How to search and replace text in a file?
...ace editing. It redirects stdout to the file in this case:
#!/usr/bin/env python3
import fileinput
with fileinput.FileInput(filename, inplace=True, backup='.bak') as file:
for line in file:
print(line.replace(text_to_search, replacement_text), end='')
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Asynchronous method call in Python?
...e and this should be the accepted answer now. When you talk about async in python3.5+ what comes to mind should be asyncio and async keyword.
– zeh
Jun 22 at 1:34
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How do I increase the cell width of the Jupyter/ipython notebook in my browser?
...ou installed jupyter on. You can find the css file in this subdir
env/lib/python3.6/site-packages/notebook/static/style/stye.min.css
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How do I disable log messages from the Requests library?
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For some reason when using the requests library in python3 you have to do getLogger("urllib3") to suppress the messages.
– robru
Aug 4 '15 at 20:10
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How to debug in Django, the good way? [closed]
...ngo view function:
import pdb; pdb.set_trace()
or
breakpoint() #from Python3.7
If you try to load that page in your browser, the browser will hang and you get a prompt to carry on debugging on actual executing code.
However there are other options (I am not recommending them):
* return Htt...
How to import a module given its name as string?
...r general use it is better to use importlib.import_module()..." When using python3, the imp module solves this proble, as monkut mentions below.
– LiavK
Jul 8 '15 at 15:14
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How do I check if a variable exists?
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@jjisnow if myVar: # Do something throws NameError in python3 if myVar is not declared
– Agile Bean
Jul 31 '18 at 14:42
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