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Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”
... that every time you call it you're requesting once more as much memory as Python is already eating up, i.e. in the hundreds of additional MB, all in order to then exec a puny 10kB executable such as free or ps. In the case of an unfavourable overcommit policy, you'll soon see ENOMEM.
Alternatives...
Getting the name of a variable as a string
This thread discusses how to get the name of a function as a string in Python:
How to get a function name as a string?
23 ...
What are the differences between json and simplejson Python modules?
...nce json was added in 2.6, simplejson has the advantage of working on more Python versions (2.4+).
simplejson is also updated more frequently than Python, so if you need (or want) the latest version, it's best to use simplejson itself, if possible.
A good practice, in my opinion, is to use one or...
How to use glob() to find files recursively?
...se pathlib.Path.rglob from the the pathlib module, which was introduced in Python 3.5.
from pathlib import Path
for path in Path('src').rglob('*.c'):
print(path.name)
If you don't want to use pathlib, use can use glob.glob('**/*.c'), but don't forget to pass in the recursive keyword parameter ...
How to convert JSON data into a Python object
I want to use Python to convert JSON data into a Python object.
21 Answers
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What does 'wb' mean in this code, using Python?
...le in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the end-of-line characters in
text files are automatically altered
slightly when data is read or written.
This behind-the-scenes modification to
...
Controlling mouse with Python
How does one control the mouse cursor in Python, i.e. move it to certain position and click, under Windows?
14 Answers
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What's the best way to parse command line arguments? [closed]
...he easiest , tersest , and most flexible method or library for parsing Python command line arguments?
15 Answers
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Unfortunately MyApp has stopped. How can I solve this?
...May 5 '19 at 14:20
Gastón Saillén
7,72144 gold badges3030 silver badges4848 bronze badges
answered Mar 22 '15 at 23:06
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Accessing dict_keys element by index in Python3
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Call list() on the dictionary instead:
keys = list(test)
In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dictionary into a list results in a list of all the keys:
>>...