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Understanding the main method of python [duplicate]
...n a file is being executed then __name__ is set to "__main__" (the literal string: __main__).
This is almost always used to separate the portion of code which should be executed from the portions of code which define functionality. So Python code often contains a line like:
#!/usr/bin/env python
...
How do I get the full path of the current file's directory?
...cover weird behaviours on windows, where dirname(file) may return an empty string!
– sorin
Oct 25 '11 at 10:10
4
...
What does “#define _GNU_SOURCE” imply?
...different Unix versions, so there is no single right content for, say, <string.h> — there are many standards (xkcd).
There's a whole set of macros to pick your favorite one, so that if your program expects one standard, the library will conform to that.
...
Why does Javascript's regex.exec() not always return the same value? [duplicate]
...be a very useful feature. You can start the evaluation at any point in the string if desired, or if in a loop, you can stop it after a desired number of matches.
Here's a demonstration of a typical approach to using the regex in a loop. It takes advantage of the fact that exec returns null when t...
Apache and Node.js on the Same Server
...writeCond %{REQUEST_URI} ^socket.io [NC]
RewriteCond %{QUERY_STRING} transport=websocket [NC]
RewriteRule /{.*} ws://localhost:3000/$1 [P,L]
RewriteCond %{HTTP:Connection} Upgrade [NC]
RewriteRule /(.*) ws://localhost:3000/$1 [P,L]
ProxyPass /nodejs http://loca...
Generating Guids in Ruby
...random UUID, so it is not guaranteed as unique. If you just want a random string that is probably unique it will be okay to use this. However, if you want something that is guaranteed to be unique you will need to use something that includes the MAC address, timestamp, and et cetera.
...
How to fix the “java.security.cert.CertificateException: No subject alternative names present” error
... }
public void checkClientTrusted(X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(X509Certificate[] certs, String authType) {
}
}
};
// Install the all-trusting trust manager
SSLContext ...
How does password salt help against a rainbow table attack?
... +1: Salt can be a portion of the hex digest of some random string built by the random number generator. Each bit is random.
– S.Lott
Jan 7 '09 at 16:10
5
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Symfony 2: How do I check if a user is not logged in inside a template?
...ble can be a UserInterface object, any other object which implements a __toString() method or even a regular string.. I don't remember where I read that app.user returns "anon." string unfortunately and under what circumstances.
– pzaj
Apr 19 '17 at 14:37
...
UTF-8 all the way through
...econd parameter.
Input:
Unfortunately, you should verify every received string as being valid UTF-8 before you try to store it or use it anywhere. PHP's mb_check_encoding() does the trick, but you have to use it religiously. There's really no way around this, as malicious clients can submit dat...