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How to get last items of a list in Python?
...e integers with the slicing operator for that. Here's an example using the python CLI interpreter:
>>> a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a[-9:]
[4, 5, 6, 7, 8, 9, 10, 11, 12]
the important line is a[-9:]
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Find index of last occurrence of a substring in a string
... str as a variable name. Another variable name that people should avoid in python is abc; there's a module called abc in the native API.
– progyammer
May 28 '19 at 10:31
add a...
Bulk package updates using Conda
...date --all will update them (note that the latter will not update you from Python 2 to Python 3, but the former will show Python as being outdated if you do use Python 2).
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Unpack a list in Python?
...function_that_needs_strings(*my_list)
where my_list can be any iterable; Python will loop over the given object and use each element as a separate argument to the function.
See the call expression documentation.
There is a keyword-parameter equivalent as well, using two stars:
kwargs = {'foo': ...
How do I check (at runtime) if one class is a subclass of another?
... unit testing of many things, particularly Django's models, much easier. "Python is not Java." Why must python programmers have such chips on their shoulders?
– Michael Bacon
Aug 17 '15 at 18:32
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How to check if a value exists in a dictionary (python)
I have the following dictionary in python:
6 Answers
6
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Python truncate a long string
How does one truncate a string to 75 characters in Python?
17 Answers
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adding header to python requests module
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From http://docs.python-requests.org/en/latest/user/quickstart/
url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
headers = {'content-type': 'application/json'}
r = requests.post(url, data=json.dumps(payload), headers=...
How do I copy an entire directory of files into an existing directory using Python?
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See this similar question.
Copy directory contents into a directory with python
Reference - https://docs.python.org/3/distutils/apiref.html#distutils.dir_util.copy_tree
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Can Python print a function definition?
...nt out the definition of a function. Is there a way to accomplish this in Python?
7 Answers
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