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What is Scala's yield?
I understand Ruby and Python's yield. What does Scala's yield do?
9 Answers
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If list index exists, do X
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In Python negative indexes on lists just count backwards from the end of the list. So they could not exist in a way that impacts the length of the list.
– JonathanV
Aug 7 '19 at 18:00
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How to determine the encoding of text?
...et was used. Is there a way to determine the encoding of a text file using Python? How can I detect the encoding/codepage of a text file deals with C#.
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How to initialize a dict with keys from a list and empty value in Python?
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This is the cleanest, most Pythonic way in Python3 IMO
– Bede Constantinides
Apr 21 '15 at 9:33
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How to log source file name and line number in Python
Is it possible to decorate/extend the python standard logging system, so that when a logging method is invoked it also logs the file and the line number where it was invoked or maybe the method that invoked it?
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Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
A Python MD5 hash is different than the one created by the md5sum command on the shell. Why?
1 Answer
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Clear variable in python
Is there a way to clear the value of a variable in python?
7 Answers
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Find first element in a sequence that matches a predicate
...redicate:
next(x for x in seq if predicate(x))
Or (itertools.ifilter on Python 2):
next(filter(predicate, seq))
It raises StopIteration if there is none.
To return None if there is no such element:
next((x for x in seq if predicate(x)), None)
Or:
next(filter(predicate, seq), None)
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Convert base-2 binary number string to int
...y number:
>>> int('11111111', 2)
255
Here is documentation for python2, and for python3.
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How to retrieve inserted id after inserting row in SQLite using Python?
How to retrieve inserted id after inserting row in SQLite using Python? I have table like this:
2 Answers
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