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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 ...
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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mysql_config not found when installing mysqldb python interface
...,'beta',4) -D__version__=1.2.4b4 -I/usr/include/mysql -I/usr/include/python2.7 -c _mysql.c -o build/temp.linux-x86_64-2.7/_mysql.o -DBIG_JOINS=1 -fno-strict-aliasing -g
In file included from _mysql.c:44:0:
/usr/include/mysql/my_config.h:422:0: aviso: se redefinió "HAVE_WCSCOLL" [act...
What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
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Add the line from future import print_function in your 2.7 file to add new python 3 print() lines to your code. Hence the code becomes compatible to 2.7+ and 3.0+
– MasterControlProgram
Oct 24 '16 at 11:20
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Format floats with standard json module
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This solution does not work in Python 2.7 using Python's C version of the JSON encoder.
– Nelson
Apr 6 '11 at 23:14
25
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How to delete items from a dictionary while iterating over it?
...ct[k]
My favorite approach is usually to just make a new dict:
# Python 2.7 and 3.x
mydict = { k:v for k,v in mydict.items() if k!=val }
# before Python 2.7
mydict = dict((k,v) for k,v in mydict.iteritems() if k!=val)
sh...
Print in one line dynamically
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Change print item to:
print item, in Python 2.7
print(item, end=" ") in Python 3
If you want to print the data dynamically use following syntax:
print(item, sep=' ', end='', flush=True) in Python 3
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