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How to list all installed packages and their versions in Python?
...u can simply call this:
pip freeze
It will also include version numbers for the installed packages.
Update
pip has been updated to also produce the same output as pip freeze by calling:
pip list
Note
The output from pip list is formatted differently, so if you have some shell script that pa...
How to find list intersection?
...arPal intersection is commonly understood to be set based. You are looking for a slightly different animal - and you may need to do that manually by sorting each list and merging the results - and keeping dups in the merging.
– javadba
Jan 6 '19 at 18:51
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...ine
visualvm_jdkhome="`/usr/libexec/java_home -v '1.7*'`"
and this will force it to choose Java 7 instead of 8.
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Which $_SERVER variables are safe?
...ariable that a user can control, an attacker can also control and is therefore a source of an attack. This is called a "tainted" variable, and is unsafe.
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Recommendations of Python REST (web services) framework? [closed]
...ist somewhere of recommendations of different Python-based REST frameworks for use on the serverside to write your own RESTful APIs? Preferably with pros and cons.
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...eneral_ci and utf8_unicode_ci , are there any differences in terms of performance?
8 Answers
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How to calculate the difference between two dates using PHP?
I have two dates of the form:
33 Answers
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Show the progress of a Python multiprocessing pool imap_unordered call?
...attributes of the result set:
from __future__ import division
import sys
for i, _ in enumerate(p.imap_unordered(do_work, xrange(num_tasks)), 1):
sys.stderr.write('\rdone {0:%}'.format(i/num_tasks))
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Comma in C/C++ macro
...e angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclose the macro argument in parentheses:
FOO((std::map<int, int>), map_var);
The problem is then that the parameter remai...
Is 'switch' faster than 'if'?
...gh, as it only works when the input can be bounded some way.
C Pseudocode for a "jump table" would be something like this -- note that the compiler in practice would need to insert some form of if test around the table to ensure that the input was valid in the table. Note also that it only works in...