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Python `if x is not None` or `if not x is None`?
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1029
There's no performance difference, as they compile to the same bytecode:
Python 2.6.2 (r262:7...
Alter column, add default constraint
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answered Jan 19 '10 at 17:07
SQLMenaceSQLMenace
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Get Folder Size from Windows Command Line
...d up sizes recursively (the following is a batch file):
@echo off
set size=0
for /r %%x in (folder\*) do set /a size+=%%~zx
echo %size% Bytes
However, this has several problems because cmd is limited to 32-bit signed integer arithmetic. So it will get sizes above 2 GiB wrong1. Furthermore it will l...
Use NUnit Assert.Throws method or ExpectedException attribute?
...actice?
– SamuelDavis
Feb 22 '13 at 0:03
5
@SamuelDavis - in general you wouldn't want to test di...
Sending “User-agent” using Requests library in Python
...requests
url = 'SOME URL'
headers = {
'User-Agent': 'My User Agent 1.0',
'From': 'youremail@domain.com' # This is another valid field
}
response = requests.get(url, headers=headers)
If you're using requests v2.12.x and older
Older versions of requests clobbered default headers, so you...
How do you rename a table in SQLite 3.0?
How do you rename a table in SQLite 3.0?
2 Answers
2
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How to revert a Git Submodule pointer to the commit stored in the containing repository?
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edited Sep 15 at 1:10
answered Oct 24 '11 at 23:28
Br...
Is there a command for formatting HTML in the Atom editor?
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edited Nov 7 '18 at 3:01
dovetalk
1,94911 gold badge1313 silver badges2020 bronze badges
answered Ju...
Entity Framework - Start Over - Undo/Rollback All Migrations
... to rollback all migrations you can use:
Update-Database -TargetMigration:0
or equivalent:
Update-Database -TargetMigration:$InitialDatabase
In some cases you can also delete database and all migration classes.
share
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EC2 Can't resize volume after increasing size
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70
Thank you Wilman your commands worked correctly, small improvement need to be considered if we a...