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How can I recover the return value of a function passed to multiprocessing.Process?
...: should use args=(my_function_argument, ). Note the , comma here! Or else Python will complain "missing positional arguments". Took me 10 minutes to figure out. Also check the manual usage (under the "process class" section).
– yuqli
Apr 29 '19 at 15:17
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List directory tree structure in python?
...hank you. Though most would know, still for the benefit of newcomers into python - please note that you would need to call the function at the end (assuming windows), so you might add a new line at the end with the content list_files ("D:\\")
– Rahul
Mar 16 '1...
Add a new item to a dictionary in Python [duplicate]
I want to add an item to an existing dictionary in Python. For example, this is my dictionary:
3 Answers
...
IntelliJ: Working on multiple projects
...w, to import each project, simply double click on the build.gradle, or pom.xml
The project will be imported as a new module.
5) Done, you now have all your projects as modules, opened on the same IntelliJ project
share
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In Python, when to use a Dictionary, List or Set?
..., if for some weird reason you couldn't import collections, or, in pre-2.7 Python as a collections.defaultdict(int), using the items as keys and the associated value as the count).
Checking for membership of a value in a set (or dict, for keys) is blazingly fast (taking about a constant, short time...
Matplotlib: “Unknown projection '3d'” error
...current version of matplotlib.
Which version are you using? (Try running: python -c 'import matplotlib; print matplotlib."__version__")
I'm guessing you're running version 0.99, in which case you'll need to either use a slightly different syntax or update to a more recent version of matplotlib.
I...
Check if something is (not) in a list in Python
I have a list of tuples in Python , and I have a conditional where I want to take the branch ONLY if the tuple is not in the list (if it is in the list, then I don't want to take the if branch)
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Is nested function a good approach when required by only one function? [closed]
...defined or used.
Update:
Here's proof that nesting them is slower (using Python 3.6.1), although admittedly not by much in this trivial case:
setup = """
class Test(object):
def separate(self, arg):
some_data = self._method_b(arg)
def _method_b(self, arg):
return arg+1
...
Check if a string contains a number
...
use str.isalpha()
Ref: https://docs.python.org/2/library/stdtypes.html#str.isalpha
Return true if all characters in the string are alphabetic and there
is at least one character, false otherwise.
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What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
..., and is scriptable; Mercurial is written in C (core, for performance) and Python, and provides API for extensions; Bazaar is written in Python, and provides API for extensions.
In considering each of them with one another and against version control systems like SVN and Perforce, what issues sho...