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Count number of occurrences of a given substring in a string
... count the number of times a given substring is present within a string in Python?
35 Answers
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How to get first element in a list of tuples?
... print list(unzipped[0])
[1, 2]
Edit (@BradSolomon):
The above works for Python 2.x, where zip returns a list.
In Python 3.x, zip returns an iterator and the following is equivalent to the above:
>>> print(list(list(zip(*inpt))[0]))
[1, 2]
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Remove trailing newline from the elements of a string list
...
If you're using Python 2, note however, that str.strip only works if you're sure that the list does not contain unicode strings. If it can contain both 8-bit and unicode strings, use lambda s: s.strip() as mentioned above, or use the strip f...
Why is list initialization (using curly braces) better than the alternatives?
...e proposed for C++20: open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1008r1.pdf
– Allan Jensen
Nov 10 '19 at 14:59
1
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Finding differences between elements of a list
....tee and zip to efficiently build the result:
from itertools import tee
# python2 only:
#from itertools import izip as zip
def differences(seq):
iterable, copied = tee(seq)
next(copied)
for x, y in zip(iterable, copied):
yield y - x
Or using itertools.islice instead:
from it...
When to use ' (or quote) in Lisp?
...is where quote comes in. Say you want to plot resource allocations from a Python application, but rather do the plotting in Lisp. Have your Python app do something like this:
print("'(")
while allocating:
if random.random() > 0.5:
print(f"(allocate {random.randint(0, 20)})")
el...
Python Matplotlib figure title overlaps axes label when using twiny
I am trying to plot two separate quantities on the same graph using twiny as follows:
6 Answers
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Inserting code in this LaTeX document with indentation
...usepackage{minted}
\begin{document}
This is a sentence with \mintinline{python}{def inlineCode(a="ipsum)}
\end{document}
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How to resize an image with OpenCV2.0 and Python2.6
I want to use OpenCV2.0 and Python2.6 to show resized images. I used and adopted this example but unfortunately, this code is for OpenCV2.1 and does not seem to be working on 2.0. Here my code:
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Git interoperability with a Mercurial Repository
...is one doesn't rely on hg-git, but instead directly accesses the Mercurial Python API. At the moment, using it also requires a patched version of git. I haven't tried this yet.
Finally, Tailor is a project that incrementally converts between a variety of different VCSs. It sounds like development of...