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How to get method parameter names?
Given the Python function:
15 Answers
15
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Create a “with” block on several context managers? [duplicate]
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In Python 2.7 and 3.1 and above, you can write:
with A() as X, B() as Y, C() as Z:
do_something()
This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the ...
Repeat string to certain length
...urn (string_to_expand * ((length/len(string_to_expand))+1))[:length]
For python3:
def repeat_to_length(string_to_expand, length):
return (string_to_expand * (int(length/len(string_to_expand))+1))[:length]
share
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How to remove stop words using nltk or python
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There's a very simple light-weight python package stop-words just for this sake.
Fist install the package using:
pip install stop-words
Then you can remove your words in one line using list comprehension:
from stop_words import get_stop_words
filtered_word...
Convert floating point number to a certain precision, and then copy to string
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With Python < 3 (e.g. 2.6 [see comments] or 2.7), there are two ways to do so.
# Option one
older_method_string = "%.9f" % numvar
# Option two
newer_method_string = "{:.9f}".format(numvar)
But note that for Python versions ...
Why does comparing strings using either '==' or 'is' sometimes produce a different result?
I've got a Python program where two variables are set to the value 'public' . In a conditional expression I have the comparison var1 is var2 which fails, but if I change it to var1 == var2 it returns True .
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Download large file in python with requests
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With the following streaming code, the Python memory usage is restricted regardless of the size of the downloaded file:
def download_file(url):
local_filename = url.split('/')[-1]
# NOTE the stream=True parameter below
with requests.get(url, stream=Tr...
Check if OneToOneField is None in Django
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Note that in Python < 3.2, hasattr will swallow all exceptions that happen during the database lookup, and not just DoesNotExist. This is probably broken, and not what you want.
– Pi Delport
Mar 2...
Remove empty strings from a list of strings
I want to remove all empty strings from a list of strings in python.
12 Answers
12
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Is there shorthand for returning a default value if None in Python? [duplicate]
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Its Pythonic #PEP20 The Zen of Python Explicit is better than implicit. Better to handle only for None Cases if thats what it takes.
– Doogle
Jan 19 '18 at 4:53
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