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Argparse: Required argument 'y' if 'x' is present
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That would stop you from setting --lport or --rport to 0, which might be a valid input to the program.
– borntyping
Mar 1 '18 at 14:34
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How can I remove a commit on GitHub? [duplicate]
...nt below. Even after force pushing to GitHub, GH still caches your commit. From help.github.com/articles/remove-sensitive-data : "Danger: Once the commit has been pushed you should consider the data to be compromised. If you committed a password, change it! If you committed a key, generate a new one...
Error handling in Bash
...~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
#
# Read last file from the error log
# ------------------------------------------------------------------
#
if test -f "$stderr_log"
then
stderr=$( tail -n 1 "$stderr_log" )
rm "$stderr_log"
fi
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How to sort objects by multiple keys in Python?
...egated column need not be a number.
def multikeysort(items, columns):
from operator import itemgetter
comparers = [((itemgetter(col[1:].strip()), -1) if col.startswith('-') else
(itemgetter(col.strip()), 1)) for col in columns]
def comparer(left, right):
for fn...
Count number of occurrences of a pattern in a file (even on same line)
...Search | cut -d ":" -f 4 | sort -n | uniq -c
Sample:
grep "SMTP connect from unknown" maillog | cut -d ":" -f 4 | sort -n | uniq -c
6 SMTP connect from unknown [188.190.118.90]
54 SMTP connect from unknown [62.193.131.114]
3 SMTP connect from unknown [91.222.51.253]
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What's the best way to store a group of constants that my program uses? [closed]
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+1, but even better if you can pull these from a resource file for localization.
– Joel Coehoorn
Nov 12 '09 at 17:46
17
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How to differentiate between time to live and time to idle in ehcache
...for 4 seconds.
If timeToLiveSeconds = 90, then the object will be removed from cache after 90 seconds, even if it has been requested few milliseconds in the 90th second of its short life.
share
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“android.view.WindowManager$BadTokenException: Unable to add window” on buider.show()
From my main activity , I need to call an inner class and in a method within the class, I need to show AlertDialog . After dismissing it, when the OK button is pressed, forward to Google Play for purchase.
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How to use a decimal range() step value?
...r is likely to give you a wrong result.
You can use the linspace function from the NumPy library (which isn't part of the standard library but is relatively easy to obtain). linspace takes a number of points to return, and also lets you specify whether or not to include the right endpoint:
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How to create a .NET DateTime from ISO 8601 format
... corrected :) the Z shows up in all my samples (which happen to come from various GPS units and GPX files)
– Reb.Cabin
May 13 '11 at 20:57
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