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Checking a Python module version at runtime
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I'd stay away from hashing. The version of libxslt being used might contain some type of patch that doesn't effect your use of it.
As an alternative, I'd like to suggest that you don't check at run time (don't know if that's a hard req...
How to remove all whitespace from a string?
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I just learned about the "stringr" package to remove white space from the beginning and end of a string with str_trim( , side="both") but it also has a replacement function so that:
a <- " xx yy 11 22 33 "
str_replace_all(string=a, pattern=" ", repl="")
[1] "xxyy112233"
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How to download image using requests
I'm trying to download and save an image from the web using python's requests module.
14 Answers
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How to compare two colors for similarity/difference
...b of telling you how different they will be PERCEIVED. Human eyes are far from perfect: we're more sensitive to green than red or blue, our brightness perception is logrithmic, etc. OP never specified which s/he wants; but see here for an algorithm specially-tailored for human sight.
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StringBuilder vs String concatenation in toString() in Java
...erties it might not make a
difference, but at what point do you
switch from concat to builder?
At the point where you're concatenating in a loop - that's usually when the compiler can't substitute StringBuilder by itself.
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How can I install from a git subdirectory with pip?
...po.git#egg=version_subpkg&subdirectory=repo # install a python package from a repo subdirectory
We probably have to wait for a while until it gets merged to master and is distributed.
UPDATE: This is now available and documented at https://pip.readthedocs.io/en/stable/reference/pip_install/#v...
Get img thumbnails from Vimeo?
I want to get a thumbnail image for videos from Vimeo.
23 Answers
23
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How to get POSTed JSON in Flask?
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For reference, here's complete code for how to send json from a Python client:
import requests
res = requests.post('http://localhost:5000/api/add_message/1234', json={"mytext":"lalala"})
if res.ok:
print res.json()
The "json=" input will automatically set the content-type, a...
How to drop columns using Rails migration
...or instance:
remove_column :users, :hobby
would remove the hobby Column from the users table.
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How to create empty text file from a batch file?
...t at all, you can use
copy /y NUL EmptyFile.txt >NUL
/y prevents copy from asking a question you can't see when output goes to NUL.
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