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Double Iteration in List Comprehension
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How do I determine if my python shell is executing in 32bit or 64bit?
...oduced in Python 2.6. If you need a test for older systems, this slightly more complicated test should work on all Python 2 and 3 releases:
$ python-32 -c 'import struct;print( 8 * struct.calcsize("P"))'
32
$ python-64 -c 'import struct;print( 8 * struct.calcsize("P"))'
64
BTW, you might be temp...
Run a batch file with Windows task scheduler
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CustomErrors mode=“Off”
...t "Runtime error" message, instructing me to turn off customErrors to view more about the error.
29 Answers
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Get itunes link for app before submitting
...e ("APPNAME" is that app name and XXXXXXXXX is the "Apple ID". You can use more general method (Recommended):
http://itunes.apple.com/app/idXXXXXXXXX
and replace "XXXXXXXXX" with your "Apple ID" (from iTunes connect - after creating the app there).
Pay attention that those would open safari if yo...
What are some compelling use cases for dependent method types?
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More or less any use of member (ie. nested) types can give rise to a need for dependent method types. In particular, I maintain that without dependent method types the classic cake pattern is closer to being an anti-pattern.
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How do I make a simple makefile for gcc on Linux?
...ace indentation, so be sure to fix that when copying)
However, to support more C files, you'd have to make new rules for each of them. Thus, to improve:
HEADERS = program.h headers.h
OBJECTS = program.o
default: program
%.o: %.c $(HEADERS)
gcc -c $< -o $@
program: $(OBJECTS)
gcc $(O...
Check whether a string is not null and not empty
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How do I check if a column is empty or null in MySQL?
...SELECT *
FROM T
WHERE some_col IS NULL
OR some_col = ' ';
or more succinctly:
SELECT *
FROM T
WHERE NULLIF(some_col, ' ') IS NULL;
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Converting many 'if else' statements to a cleaner approach [duplicate]
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