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How can I open a Shell inside a Vim Window?
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One thing to look out for: The +python or +python3 requirement for vi can be a killer in some work environments.
– cfi
Oct 29 '15 at 7:26
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Python - Create list with numbers between 2 values?
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@BillalBegueradj In Python3, range() returns a generator-like object instead of a list. It's basically the same as xrange() in Python 2. You're right that list comprehension isn't needed. The list() builtin function is easier: list(range(x1, ...
Round to 5 (or other number) in Python
...n 2
def myround(x, base=5):
return int(base * round(float(x)/base))
Python3
def myround(x, base=5):
return base * round(x/base)
It is easy to see why the above works. You want to make sure that your number divided by 5 is an integer, correctly rounded. So, we first do exactly that (r...
Convert decimal to binary in python [duplicate]
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@Timo lol apparently you are using Python3 just change binary(n/2) to binary(n//2) then you won't get that busload :-)
– Aziz Alto
Feb 7 '18 at 16:42
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How to format a floating number to fixed width in Python
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In python3 the following works:
>>> v=10.4
>>> print('% 6.2f' % v)
10.40
>>> print('% 12.1f' % v)
10.4
>>> print('%012.1f' % v)
0000000010.4
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How to check if string input is a number? [duplicate]
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The method isnumeric() will do the job (Documentation for python3.x):
>>>a = '123'
>>>a.isnumeric()
True
But remember:
>>>a = '-1'
>>>a.isnumeric()
False
isnumeric() returns True if all characters in the string are numeric characters, and th...
How to print a percentage value in python?
...0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example would could now be written without the explicit
# float conversion:
>>>...
Relative imports in Python 2.7
...quirk. If you run this whole thing from outside:
$ python2 lib.foo
or:
$ python3 lib.foo
the behavior depends on the contents of lib/__init__.py. If that exists and is empty, all is well:
Package named 'lib'; __name__ is '__main__'
But if lib/__init__.py itself imports routine so that it can ex...
ipython reads wrong python version
...tall ipython
(venv2.7)$ ipython
for python 3.4
$ virtualenv -p /usr/bin/python3.4 venv3.4
$ source venv3.4/bin/activate
(venv3.4)$ pip install ipython
(venv3.4)$ ipython
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How do I update a Python package?
...ely upgrades packages that don't break change. Compatible with Python2.7+, Python3.4+ and pip9+, pip10+, pip18+.
NOTE: I'm the author of the tool.
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