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Recursive sub folder search and return files in a list python

... You should be using the dirpath which you call root. The dirnames are supplied so you can prune it if there are folders that you don't wish os.walk to recurse into. import os result = [os.path.join(dp, f) for dp, dn, filenames in os.walk(PATH) for f in filenames if o...
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Unable to execute dex: GC overhead limit exceeded in Eclipse

...4-bit JVM. If you're on a 64 bit JVM, you can safely set it to anything smaller than your RAM size minus overhead for OS/other applications. On a 32 bit VM, you'll want to keep it smaller than about 1500M (on Linux) or 1100M (on Windows) because the VM needs to allocate contiguous address space, a...
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How to reset postgres' primary key sequence when it falls out of sync?

... All issues solved and combined into a single query: SELECT setval('your_seq',(SELECT GREATEST(MAX(your_id)+1,nextval('your_seq'))-1 FROM your_table)) – Frunsi Oct 27 '13 at 17:34 ...
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What are the differences between NP, NP-Complete and NP-Hard?

... the technical definitions require quite some time to understand. First of all, let's remember a preliminary needed concept to understand those definitions. Decision problem: A problem with a yes or no answer. Now, let us define those complexity classes. P P is a complexity class that repres...
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Naming returned columns in Pandas aggregate function? [duplicate]

...er, this does not work with lambda functions, since they are anonymous and all return <lambda>, which causes a name collision: >>> df.groupby('A').agg({'B': [lambda x: x.min(), lambda x: x.max]}) SpecificationError: Function names must be unique, found multiple named <lambda> ...
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Most efficient way to determine if a Lua table is empty (contains no entries)?

...olution though, and I honestly can't assume that my solution is faster overall. share | improve this answer | follow | ...
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How to Batch Rename Files in a macOS Terminal?

...g). If you find yourself batch-renaming files frequently, consider installing a specialized tool such as the Perl-based rename utility. On macOS you can install it using popular package manager Homebrew as follows: brew install rename Here's the equivalent of the command at the top using rena...
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How do you express binary literals in Python?

... memory. Note that leading zeros in a non-zero decimal number are not allowed. This is for disambiguation with C-style octal literals, which Python used before version 3.0. Some examples of integer literals: 7 2147483647 0o177 0b100110111 3 7922816251...
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How do I convert a String object into a Hash object?

... The string created by calling Hash#inspect can be turned back into a hash by calling eval on it. However, this requires the same to be true of all of the objects in the hash. If I start with the hash {:a => Object.new}, then its string represen...
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Why does C++11 not support designated initializer lists as C99? [closed]

... named function arguments. But as of right now, name arguments don't officially exist. See N4172 Named arguments for a proposal of this. It would make code less error prone and easier to read. – David Baird Nov 29 '15 at 15:11 ...