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How do I write a “tab” in Python?
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The Python reference manual includes several string literals that can be used in a string. These special sequences of characters are replaced by the intended meaning of the escape sequence.
Here is a table of some of the more u...
How to get exit code when using Python subprocess communicate method?
How do I retrieve the exit code when using Python's subprocess module and the communicate() method?
5 Answers
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How do you extract a column from a multi-dimensional array?
...oes anybody know how to extract a column from a multi-dimensional array in Python?
20 Answers
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How can I get a list of all classes within current module in Python?
... even if the current module hasn't been put in sys.modules, e.g. from docs.python.org/2/library/functions.html#execfile
– Chris Smith
May 1 '13 at 14:44
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Extract elements of list at odd positions
...t is reached,
EDIT: @PreetKukreti gave a link for another explanation on Python's list slicing notation. See here: Explain Python's slice notation
Extras - replacing counter with enumerate()
In your code, you explicitly create and increase the counter. In Python this is not necessary, as you can...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
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Empty dictionaries evaluate to False in Python:
>>> dct = {}
>>> bool(dct)
False
>>> not dct
True
>>>
Thus, your isEmpty function is unnecessary. All you need to do is:
def onMessage(self, socket, message):
if not self.u...
Accessing dict keys like an attribute?
... instead of KeyError
Supports [Tab] autocompletion (e.g. in jupyter & ipython)
Cons:
Methods like .keys() will not work just fine if they get overwritten by incoming data
Each AttrDict instance actually stores 2 dictionaries, one inherited and another one in __dict__
Causes a memory leak in Py...
How do you split a list into evenly sized chunks?
...2, 63, 64, 65, 66, 67, 68, 69],
[70, 71, 72, 73, 74]]
If you're using Python 2, you should use xrange() instead of range():
def chunks(lst, n):
"""Yield successive n-sized chunks from lst."""
for i in xrange(0, len(lst), n):
yield lst[i:i + n]
Also you can simply use list c...
In Python, when should I use a function instead of a method?
The Zen of Python states that there should only be one way to do things- yet frequently I run into the problem of deciding when to use a function versus when to use a method.
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Generate random numbers with a given (numerical) distribution
...numpy.arange(1, 7), p=[0.1, 0.05, 0.05, 0.2, 0.4, 0.2])
If you are using Python 3.6 or above, you can use random.choices() from the standard library – see the answer by Mark Dickinson.
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