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How to generate random number with the specific length in python
...an just do it as a oneliner:
'{:03}'.format(random.randrange(1, 10**3))
python 3.6+ only oneliner:
f'{random.randrange(1, 10**3):03}'
Example outputs of the above are:
'026'
'255'
'512'
Implemented as a function:
import random
def n_len_rand(len_, floor=1):
top = 10**len_
if flo...
What's the difference between lists and tuples?
...tial advantages.
There are some interesting articles on this issue, e.g. "Python Tuples are Not Just Constant Lists" or "Understanding tuples vs. lists in Python". The official Python documentation also mentions this
"Tuples are immutable, and usually contain an heterogeneous sequence ...".
I...
python: SyntaxError: EOL while scanning string literal
...ut eight lines with " \" at the very end, was missing a " \" on one line.
Python IDLE didn't specify a line number that this error was on, but it red-highlighted a totally correct variable assignment statement, throwing me off. The actual misshapen string statement (multiple lines long with " \") ...
Calculate difference in keys contained in two Python dictionaries
Suppose I have two Python dictionaries - dictA and dictB . I need to find out if there are any keys which are present in dictB but not in dictA . What is the fastest way to go about it?
...
How to duplicate sys.stdout to a log file?
...my question to also ask: What is the best way to accomplish logging when a python app is making a lot of system calls?
17 A...
Argument list too long error for rm, cp, mv commands
...oo long". How can I process a large list in chunks? @ wooledge
execve(2) - Linux man page (search for ARG_MAX) ;
Error: Argument list too long @ Debian's wiki ;
Why do I get “/bin/sh: Argument list too long” when passing quoted arguments? @ SuperUser
...
How to read and write INI file with Python3?
I need to read, write and create an INI file with Python3.
6 Answers
6
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Making Python loggers output all messages to stdout in addition to log file
Is there a way to make Python logging using the logging module automatically output things to stdout in addition to the log file where they are supposed to go? For example, I'd like all calls to logger.warning , logger.critical , logger.error to go to their intended places but in addition al...
How to equalize the scales of x-axis and y-axis in Python matplotlib?
...
Sorry, plt.axis('scaled') didn't work for me in Python 3.7 and matplotlib - matplotlib==3.1.0 However, plt.axis('square') worked!
– rishi jain
Oct 11 '19 at 10:15
...
'too many values to unpack', iterating over a dict. key=>string, value=>list
...
Python 2
You need to use something like iteritems.
for field, possible_values in fields.iteritems():
print field, possible_values
See this answer for more information on iterating through dictionaries, such as using item...