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Python idiom to return first item or None
I'm sure there's a simpler way of doing this that's just not occurring to me.
23 Answers
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What is the difference between isinstance('aaa', basestring) and isinstance('aaa', str)?
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answered Dec 30 '09 at 8:05
Mark ByersMark Byers
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Quickly create large file on a Windows system
In the same vein as Quickly create a large file on a Linux system ,
I'd like to quickly create a large file on a Windows system. By large I'm thinking 5 GB. The content doesn't matter. A built-in command or short batch file would be preferable, but I'll accept an application if there are no other...
How to force GitHub Pages build?
... in the tags (,) and that caused this issue.
You will not get relevant error messages if there are any issues in your .md file. I recommend you to check for the build status and compare the changes if you are facing the same issue.
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How to properly assert that an exception gets raised in pytest?
...():
try:
x = 1 / 0
assert False
except ZeroDivisionError:
assert True
def test_fails_but_bad_style():
try:
x = 1 / 1
assert False
except ZeroDivisionError:
assert True
Output
=========================================================...
receiver type *** for instance message is a forward declaration
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FWIW, I got this error when I was implementing core data in to an existing project. It turned out I forgot to link CoreData.h to my project. I had already added the CoreData framework to my project but solved the issue by linking to the fram...
List of All Locales and Their Short Codes?
...ns/7192410/…
– Boris
Mar 12 at 23:05
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How to list the tables in a SQLite database file that was opened with ATTACH?
...ype='table'; this does not work for me (for the attached DB) and it throws error as: no such table exist "my_db.sqlite_master"
– kanika
Jul 27 '16 at 7:16
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Syntax error on print with Python 3 [duplicate]
Why do I receive a syntax error when printing a string in Python 3?
3 Answers
3
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...VC\\INCLUDE\\iterator(93) : error C2039: “push_front”: 不是“std...
...VC\INCLUDE\iterator(93) : error C2039: “push_front”: 不是“std::vector”的成员...VC INCLUDE iterator(93) : error C2039: push_front:不是std::vector<_Ty>的成员 with [ _Ty=int ]错误代码：int ia[] = {1......VC\INCLUDE\iterator(93) : error C2039: “push_front”: 不是“std:...