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Find which version of package is installed with pip
...hat is the difference between using pip list and doing import X and then X.__version__? Are both the package versions?
– variable
Oct 13 '19 at 4:27
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Portable way to get file size (in bytes) in shell?
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One would guess the portable ls -ln FILE | { read _ _ _ _ size _ && echo "$size"; } needs not fork for the second step of the pipeline, as it uses just built-ins, but Bash 4.2.37 on Linux forks twice (still only one execve, though).
– Palec
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Should import statements always be at the top of a module?
...ent libraries, don't break if an optional library is not installed.
In the __init__.py of a plugin, which might be imported but not actually used. Examples are Bazaar plugins, which use bzrlib's lazy-loading framework.
shar...
Get the _id of inserted document in Mongo database in NodeJS
...ection.insert that will return the doc or docs inserted, which should have _ids.
Try:
collection.insert(objectToInsert, function(err,docsInserted){
console.log(docsInserted);
});
and check the console to see what I mean.
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How to pick just one item from a generator?
...ption if necessary, or use the default argument to next():
next(g, default_value)
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CMake: Print out all accessible variables in a script
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Using the get_cmake_property function, the following loop will print out all CMake variables defined and their values:
get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
foreach (_variableName ${_variableNames})
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How do I execute a string containing Python code in Python?
....stderr = codeErr
exec code
# restore stdout and stderr
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
print f(4)
s = codeErr.getvalue()
print "error:\n%s\n" % s
s = codeOut.getvalue()
print "output:\n%s" % s
codeOut.close()
codeErr.close()
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Convert json data to a html table [closed]
...in vanilla-js, using DOM methods to prevent html injection.
Demo
var _table_ = document.createElement('table'),
_tr_ = document.createElement('tr'),
_th_ = document.createElement('th'),
_td_ = document.createElement('td');
// Builds the HTML Table out of myList json data from Ivy r...
How do I get Pyflakes to ignore a statement?
... worked around, if you're wondering:
try:
from unittest.runner import _WritelnDecorator
_WritelnDecorator; # workaround for pyflakes issue #13
except ImportError:
from unittest import _WritelnDecorator
Substitude _unittest and _WritelnDecorator with the entities (modules, function...
How to join strings in Elixir?
...u could treat it as an iolist:
["StringA", " ", "StringB"] |> IO.iodata_to_binary # "StringA StringB"
This gives you some performances boosts as you're not duplicating any of the strings in memory.
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