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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
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14 Answers
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Create numpy matrix filled with NaNs
...as posted by Blaenk:
$ python -mtimeit "import numpy as np; a = np.empty((100,100));" "a.fill(np.nan)"
10000 loops, best of 3: 54.3 usec per loop
$ python -mtimeit "import numpy as np; a = np.empty((100,100));" "a[:] = np.nan"
10000 loops, best of 3: 88.8 usec per loop
The timings show a prefere...
Using Git, how could I search for a string across all branches?
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175
You can do this on a Git repository:
git grep "string/regexp" $(git rev-list --all)
GitHub ...
How to check whether a Storage item is set?
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Bash syntax error: unexpected end of file
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Press alt + numeric in bash and you get (arg [numeric]) what is that?
... and then the command. For example, to give the C-d command an argument of 10, you could type 'M-1 0 C-d', which will delete the next ten characters on the input line.
For that to work, you have to know where the Meta key is mapped: sometimes it's Alt, sometimes it's Esc, cool computers have a dedi...
How to check if a string contains an element from a list in Python
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edited Aug 22 '18 at 11:55
Nam G VU
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Convert absolute path into relative path given a current directory using Bash
...U coreutils 8.23 is the simplest, I think:
$ realpath --relative-to="$file1" "$file2"
For example:
$ realpath --relative-to=/usr/bin/nmap /tmp/testing
../../../tmp/testing
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Reading a List from properties file and load with spring annotation @Value
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