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Encoding an image file with base64

... here is an update after you have edited your original question. First of all, remember to use raw strings (prefix the string with 'r') when using path delimiters on Windows, to prevent accidentally hitting an escape character. Second, PIL's Image.open either accepts a filename, or a file-like (tha...
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Starting python debugger automatically on error

... You can use traceback.print_exc to print the exceptions traceback. Then use sys.exc_info to extract the traceback and finally call pdb.post_mortem with that traceback import pdb, traceback, sys def bombs(): a = [] print a[0] if __name__ == '...
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Maven fails to find local artifact

Occasionally maven complains that a particular dependency, which is built and packaged locally, cannot be found in the local repository while building another project that has it as a dependency. We get an error like: ...
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postgresql list and order tables by size

How can I list all the tables of a PostgreSQL database and order them by size ? 7 Answers ...
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How can I see the raw SQL queries Django is running?

...t the output of the query is not valid SQL, because: "Django never actually interpolates the parameters: it sends the query and the parameters separately to the database adapter, which performs the appropriate operations." From Django bug report #17741. Because of that, you should not send qu...
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Can I define a class name on paragraph using Markdown?

...lt;p class='specialParagraph' markdown='1'> **Another paragraph** which allows *Markdown* within it. </p> Possible Solution: (Untested and intended for <blockquote>) I found the following online: Function function _DoBlockQuotes_callback($matches) { ...cut... //add id a...
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Updating MySQL primary key

I have a table user_interactions with 4 columns: 3 Answers 3 ...
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How to completely uninstall Visual Studio 2010?

...ly and ultimately remove Visual Studio 2010 from my computer. When you install Visual Studio, it also installs a bunch of programs (about 55) in the add/remove programs panel ( appwiz.cpl ). ...
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Java “lambda expressions not supported at this language level”

...: android { compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } } – BaDo Sep 25 '15 at 2:30 ...
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Insert, on duplicate update in PostgreSQL?

...it would be much slower, because each upsert would be its' own individual call into the database. – baash05 Mar 1 '12 at 0:27 ...