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What's the algorithm to calculate aspect ratio?

...(self.width / common) + ':' + str(self.height / common) self.ratio_error = 0 # Special case: ratio is not well behaved if not self.ratio in accepted_ratios: lesser_error = 999 lesser_index = -1 my_ratio_normalized = float(self.width) / flo...
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Unpacking, extended unpacking and nested extended unpacking

...happens when we wrap c in a tuple: (a,b), (c,) = [1,2],'this' # ERROR -- too many values to unpack Becomes ((a, b), (c,)) = ((1, 2), ('t', 'h', 'i', 's')) Again, the error is obvious. c is no longer a naked variable, but a variable inside a sequence, and so the corresponding sequence...
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Spring Boot: How can I set the logging level with application.properties?

... logging.level.org.springframework.web: DEBUG logging.level.org.hibernate: ERROR For earlier versions of Spring Boot you cannot. You simply have to use the normal configuration for your logging framework (log4j, logback) for that. Add the appropriate config file (log4j.xml or logback.xml) to the sr...
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Launching Spring application Address already in use

I have this error launching my spring application: 25 Answers 25 ...
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Using std Namespace

...g namespace std; int count = 0; int increment() { return ++count; // error, identifier count is ambiguous } The error is typically long and unfriendly because std::count is a template with some long nested types. This is OK though, because std::count goes into the global namespace and the f...
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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)

...If you are using ubuntu, you have to use the following steps to avoid this error(if there is no replication enabled): run the command vim /etc/mysql/my.cnf comment bind-address = 127.0.0.1 using the # symbol restart your mysql server once. Update In Step 1, if you cannot find bind-address in th...
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Unrecognized SSL message, plaintext connection? Exception

... I have the same error, and I solved when I started using http instead of https. But when I place the link in browser with https it works! And I need to perform a safe query. Any idea on how can I solve the problem? – cc...
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Constants in Objective-C

...MY_CONST_2 25. The result is that you may very well end up with a compiler error when it tries to compile 5_2. Do not use #define for constants. Use const for constants. – ArtOfWarfare Apr 24 '13 at 14:03 ...
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Eclipse error “ADB server didn't ACK, failed to start daemon”

After updating the SDK, Eclipse shows this error: 22 Answers 22 ...
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Catching an exception while using a Python 'with' statement

... with open( "a.txt" ) as f : print f.readlines() except EnvironmentError: # parent of IOError, OSError *and* WindowsError where available print 'oops' If you want different handling for errors from the open call vs the working code you could do: try: f = open('foo.txt') except IOE...