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How do I install pip on macOS or OS X?
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Installed /Library/Python/2.7/site-packages/pip-6.0.6-py2.7.egg -- what about my python3 installation? Does this just mean that pip uses my python2 installation?
– temporary_user_name
Jan 8 '15 at 22:37
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In Python, how do you convert a `datetime` object to seconds?
...econds. Subtracting two dates gives a timedelta object, which as of Python 2.7 has a total_seconds() function.
>>> (t-datetime.datetime(1970,1,1)).total_seconds()
1256083200.0
The starting date is usually specified in UTC, so for proper results the datetime you feed into this formula sho...
bash: pip: command not found
...lso, there is no /Library/Frameworks/Python.framework/Versions/2.6/ - only 2.7, and the only appeared after I ran the Python 2.7 installer moments ago. Does this mean the default Python 2.6 that comes with Mac doesn't conform to whatever ever standard file locations you assumed?
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How to import a module given its name as string?
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With Python older than 2.7/3.1, that's pretty much how you do it.
For newer versions, see importlib.import_module for Python 2 and and Python 3.
You can use exec if you want to as well.
Or using __import__ you can import a list of modules by do...
How to print number with commas as thousands separators?
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Locale unaware
'{:,}'.format(value) # For Python ≥2.7
f'{value:,}' # For Python ≥3.6
Locale aware
import locale
locale.setlocale(locale.LC_ALL, '') # Use '' for auto, or force e.g. to 'en_US.UTF-8'
'{:n}'.format(value) # For Python ≥2.7
f'{value:n}' # For Python ...
How can I determine the URL that a local Git repository was originally cloned from?
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With Git 2.7 (release January 5th, 2015), you have a more coherent solution using git remote:
git remote get-url origin
(nice pendant of git remote set-url origin <newurl>)
See commit 96f78d3 (16 Sep 2015) by Ben Boeckel (ma...
Python JSON serialize a Decimal object
...was running Python 2.6.5 and it worked fine. However, I upgraded to Python 2.7 and it stopped working. I tried to think of some sort of way to encode Decimal objects and this is what I came up with:
import decimal
class DecimalEncoder(json.JSONEncoder):
def default(self, o):
if isinsta...
Relative imports in Python 2.7
... idea here is this (and note that these all function the same across python2.7 and python 3.x):
If run as import lib or from lib import foo as a regular package import from ordinary code, __package is lib and __name__ is lib.foo. We take the first code path, importing from .fileA, etc.
If run as ...
Generate a random date between two other dates
... results in the total seconds. The total_seconds() method is new in python 2.7 and didn't exist back in 2009 when I answered the question. If you have python 2.7 you should use that instead, but the code works fine as it is.
– nosklo
Nov 22 '11 at 11:12
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