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Given two directory trees, how can I find out which files differ by content?
If I want find the differences between two directory trees, I usually just execute:
10 Answers
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Delete an element from a dictionary
... use an an already constructed dict without a single item as **kwargs, some_function(**{k:v for k,v in some_dict.items() if k not 'some_key'})
– Cole
Nov 19 '17 at 21:14
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How to destroy an object?
... objects as soon as the page is served. So this should only be needed on really long loops and/or heavy intensive pages.
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how to rotate a bitmap 90 degrees
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In case you don't need the original bitmap, call bitmap.recycle() to be certain.
– Nick Bedford
Feb 12 '19 at 10:47
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Create directory if it does not exist
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What will -Force actually do? The documentation says "Forces this cmdlet to create an item that writes over an existing read-only item". Will it delete an existing folder? It should be clear in this answer.
– Peter Mortensen...
How can I read a large text file line by line using Java?
...ce the Stream in a try-with-resource block to ensure the #close method is called on it, otherwise the underlying file handle is never closed until GC does it much later.
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What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
...lt;module>
TypeError: unsupported operand type(s) for >>: 'builtin_function_or_method' and '_io.TextIOWrapper'. Did you mean "print(<message>, file=<output_stream>)"?
Since this error is raised when the code runs, rather than when it is compiled, it doesn't have access to the ...
How to close tag properly?
...es the tag properly. Best to add the alt attribute for people that are visually impaired.
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Lambda function in list comprehensions
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The first one creates a single lambda function and calls it ten times.
The second one doesn't call the function. It creates 10 different lambda functions. It puts all of those in a list. To make it equivalent to the first you need:
[(lambda x: x*x)(x) for x in range(10)]
Or b...
How to add new column to MYSQL table?
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Thanks, It worked with - mysql_query("ALTER TABLE assessment ADD q6 INT(1) NOT NULL AFTER q5");
– Steven Trainor
Apr 19 '13 at 21:33
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