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How to check if a python module exists without importing it
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import imp
try:
imp.find_module('eggs')
found = True
except ImportError:
found = False
To find dotted imports, you need to do more:
import imp
try:
spam_info = imp.find_module('spam')
spam = imp.load_module('spam', *spam_info)
imp.find_module('eggs', spam.__path__) # __path...
how to release localhost from Error: listen EADDRINUSE
...7
and when i try to run the tester in the command line i get the following error
28 Answers
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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
I keep getting an error that says
10 Answers
10
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How to empty (“truncate”) a file on linux that already exists and is protected in someway?
I have a file called error.log on my server that I need to frequently truncate. I have rw permissions for the file. Opening the file in vi > deleting all content > saving works (obviously). But when I try the below
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Tomcat startup logs - SEVERE: Error filterStart how to get a stack trace?
When I start Tomcat I get the following error:
16 Answers
16
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Why use strict and warnings?
...helps find typos in variable names. Even experienced programmers make such errors. A common case is forgetting to rename an instance of a variable when cleaning up or refactoring code.
Using use strict; use warnings; catches many errors sooner than they would be caught otherwise, which makes it eas...
Error 1046 No database Selected, how to resolve?
Error
SQL query:
16 Answers
16
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Gmail Error :The SMTP server requires a secure connection or the client was not authenticated. The s
...s correctly in my local Machine. But on Production server i am getting the error message
25 Answers
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SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0
I upgraded from Java 1.6 to Java 1.7 today.
Since then an error occur when I try to establish a connection to my webserver over SSL:
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REST HTTP status codes for failed validation or invalid duplicate
...ntax
So it might have been argued that it was inappropriate for semantic errors. But not any more; since June 2014 the relevant standard RFC 7231, which supersedes the previous RFC2616, gives the use of 400 (Bad Request) more broadly as
the server cannot or
will not process the request du...