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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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round() doesn't seem to be rounding properly
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This is no l longer a problem with either Python 2.7 or Python 3.5
– vy32
Feb 5 '17 at 12:47
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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...
Command line CSV viewer? [closed]
...r Python data, like a list of lists) is here on Github
Features:
Python 2.7+, 3.x
Unicode support
Spreadsheet-like view for easily visualizing tabular data
Vim-like navigation (h,j,k,l, g(top), G(bottom), 12G goto line 12, m - mark,
' - goto mark, etc.)
Toggle persistent header row
Dynamically r...
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 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 ...
Change the name of a key in dictionary
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In python 2.7 and higher, you can use dictionary comprehension:
This is an example I encountered while reading a CSV using a DictReader. The user had suffixed all the column names with ':'
ori_dict = {'key1:' : 1, 'key2:' : 2, 'key3:'...
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 ...
Is it possible to have different Git configuration for different projects?
... @JosephLust you need to install git >= 2.13 (Ubuntu 16.04 has git 2.7). Get the latest version of git via Git PPA and it will work :)
– Cas
Dec 9 '17 at 21:49
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