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Create RegExps on the fly using string variables
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With string literals this is easy enough.
Not really! The example only replaces the first occurrence of string_to_replace. More commonly you want to replace all occurrences, in which case, you have to convert the string into a global (/.../g) RegExp. You can do this from a...
Assign pandas dataframe column dtypes
... of multiple columns in pd.Dataframe (I have a file that I've had to manually parse into a list of lists, as the file was not amenable for pd.read_csv )
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How do I compile a Visual Studio project from the command-line?
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MSBuild usually works, but I've run into difficulties before. You may have better luck with
devenv YourSolution.sln /Build
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disable maven download progress indication
...--no-transfer-progress will suppress the output of downloading messages at all without suppressing the other output.
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git replace local version with remote version
...ex directly use
git read-tree remote/branch:subdir/
You can then (optionally) update your working copy by doing
git checkout-index -u --force
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np.mean() vs np.average() in Python NumPy?
...verage
np.mean:
try:
mean = a.mean
except AttributeError:
return _wrapit(a, 'mean', axis, dtype, out)
return mean(axis, dtype, out)
np.average:
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if weights is None :
avg = a.mean(axis)
scl = avg.dtype.type(a.size/avg.size)
else:
#code that does weighted mean here
if retu...
git switch branch without discarding local changes
...arting from wherever you are
now. Now you can commit and the new stuff is all on develop.
You do have a develop. See if Git will let you switch without
doing anything:
$ git checkout develop
This will either succeed, or complain. If it succeeds, great! Just
commit. If not (error: Your local ...
How is mime type of an uploaded file determined by browser?
...dden), and then if not found there, we defer to the system registry.
// Finally, we scan a secondary hard-coded list to catch types that we can
// deduce but that we also want to allow the OS to override.
The hard-coded lists come a bit earlier in the file: https://cs.chromium.org/chromium/src/net/...
Understanding keystore, certificates and alias
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The dev site suggests using the same certificate for all your apps. So does this mean, as long as I'm using the same keystore, I can use any alias with any password and it won't mess up updates, as it's just a reference? The actual keystore is the important part?
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Replace one character with another in Bash
.... Example:
foo=" "
# replace first blank only
bar=${foo/ /.}
# replace all blanks
bar=${foo// /.}
See http://tldp.org/LDP/abs/html/string-manipulation.html for more details.
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