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Reading and writing environment variables in Python? [duplicate]
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environment for the new process image. The envp array is
terminated by a null pointer.
(From environ(3posix).)
You access environment variables in python using the os.environ dictionary-like object:
>>> import os
>>> os.environ["HOME"]
'/home/sarnold'
>>> os.env...
opposite of .gitignore file? [duplicate]
Is it possible to let git ignore all files by default, unless specified in a special file?
2 Answers
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Replace all whitespace characters
... That doesn’t work. \s\n\t matches: any whitespace character, followed by a newline, followed by tab.
– Daniel Cassidy
Jun 28 '11 at 13:20
add a comment
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Rails Admin vs. ActiveAdmin [closed]
...sAdmin was merged into ActiveAdmin to produce an extensible, yet automatic-by-default interface.
– ndbroadbent
Nov 29 '12 at 7:27
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Delete terminal history in Linux [closed]
... isn't only -c enough? Manuals says -c clears the history list by deleting all of the entries. -w wirtes the current history to history file and append them to history list. Just -c works fine.
– Kahn
Feb 9 '17 at 14:43
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How to return value from an asynchronous callback function? [duplicate]
...k you want to do inside your callback.
Asynchronous callbacks are invoked by the browser or by some framework like the Google geocoding library when events happen. There's no place for returned values to go. A callback function can return a value, in other words, but the code that calls the functi...
Difference between datetime and timestamp in sqlserver? [duplicate]
...restingly, MSDN points out that rowversion can be cheated to be non-unique by using SELECT INTO - although they point out that this is a bad idea. If you use it properly (i.e. let the database manage the rowversion value) then it will always be unique and monotonically increasing - which can be ver...
Simple 'if' or logic statement in Python [closed]
...isn't an int or float but a string, you need to convert it to an int first by doing
key = int(key)
or to a float by doing
key = float(key)
Otherwise, what you have in your question should work, but
if (key < 1) or (key > 34):
or
if not (1 <= key <= 34):
would be a bit clearer...
How to fix Terminal not loading ~/.bashrc on OS X Lion [closed]
... it, chapter INVOCATION (just search for INVOCATION after calling man bash by typing /INVOCATION)
– ckruse
Jul 30 '13 at 8:47
3
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MySQL case sensitive query [duplicate]
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MySQL queries are not case-sensitive by default. Following is a simple query that is looking for 'value'. However it will return 'VALUE', 'value', 'VaLuE', etc…
SELECT * FROM `table` WHERE `column` = 'value'
The good news is that if you need to make a case-...