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How to check for valid email address? [duplicate]

...g it even a little tighter. Seems safe to limit TLD to alphanumeric right now (still haven't seen a TLD that has non-ASCII chars). Using this now: re.compile(r"[^@\s]+@[^@\s]+\.[a-zA-Z0-9]+$") – gaefan Aug 29 '15 at 15:39 ...
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Pointer expressions: *ptr++, *++ptr and ++*ptr

...ment. Similarly p++ is going to evaluate to the current value of p. As we know, the current value of p is the address of 'H'. So now the p++ part of *p++ has been evaluated; it's the current value of p. Then the * part happens. *(current value of p) means: access the value at the address held by p...
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Using Python 3 in virtualenv

... location related concerns, relocatable was removed as an option.... is it now unnecessary? is their a workaround? or is it just now completely useless to prepare an app? – J. M. Becker Sep 27 '16 at 21:33 ...
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gunicorn autoreload on source change

... While this is old question you need to know that ever since version 19.0 gunicorn has had the --reload option. So now no third party tools are needed. share | impr...
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Eclipse git checkout (aka, revert)

... not already show your repository, click on the project or file You should now see the files you modified in the Unstaged Changes section Double-click on the unstaged file You now see a compare view with your version on the left and the version before the changes on the right Now, to undo only som...
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NumPy or Pandas: Keeping array type as integer while having a NaN value

... For now you have to specify a special dtype like 'Int64' to make it work. It will be even better when it will be enabled by default. – Jean Paul Jan 23 '19 at 13:42 ...
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HTML/CSS: Make a div “invisible” to clicks?

...refox 3.6+, Chrome 2+, IE 11+, and Safari 4+. Unfortunately, I don't have knowledge of a cross-browser workaround. #overlay { pointer-events: none; } share | improve this answer | ...
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MacOSX homebrew mysql root password

...ce launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist Now start mysql by hand skipping the grant tables and networking $(brew --prefix mysql)/bin/mysqld_safe --skip-grant-tables --skip-networking Note that if when you run echo $(brew --prefix mysql) and it does not respond as...
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Most Useful Attributes [closed]

I know that attributes are extremely useful. There are some predefined ones such as [Browsable(false)] which allows you to hide properties in the properties tab. Here is a good question explaining attributes: What are attributes in .NET? ...
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What goes into your .gitignore if you're using CocoaPods?

I've been doing iOS development for a couple of months now and just learned of the promising CocoaPods library for dependency management. ...