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Call by name vs call by value in Scala, clarification needed
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frhack
3,77111 gold badge2424 silver badges2121 bronze badges
answered Nov 12 '12 at 1:40
dhgdhg
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Process escape sequences in a string in Python
...decoded_string = bytes(myString, "utf-8").decode("unicode_escape") # python3
>>> decoded_string = myString.decode('string_escape') # python2
>>> print(decoded_string)
spam
eggs
Don't use the AST or eval. Using the string codecs is much safer.
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Format bytes to kilobytes, megabytes, gigabytes
... size info to kilobytes, megabytes and gigabytes? For instance I have an MP3 that Ubuntu displays as "5.2 MB (5445632 bytes)". How would I display this on a web page as "5.2 MB" AND have files less than one megabyte display as KB and files one gigabyte and above display as GB?
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Docker: adding a file from a parent directory
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231
You can build the Dockerfile from the parent directory:
docker build -t <some tag> -f &l...
BASH copy all files except one
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JonJon
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How can I get selector from jQuery object
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edited Jun 23 '15 at 16:11
answered Mar 10 '10 at 23:10
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sed: print only matching group
...eplaced with the contents of the group
echo "foo bar <foo> bla 1 2 3.4" |
sed -n 's/.*\([0-9][0-9]*[\ \t][0-9.]*[ \t]*$\)/\1/p'
2 3.4
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How to write DataFrame to postgres table?
...create_engine
engine = create_engine('postgresql://scott:tiger@localhost:5432/mydatabase')
df.to_sql('table_name', engine)
You are correct that in pandas up to version 0.13.1 postgresql was not supported. If you need to use an older version of pandas, here is a patched version of pandas.io.sql: ...
Insert Data Into Temp Table with Query
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edited Nov 20 '13 at 22:03
answered Nov 20 '13 at 21:58
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How to parse a CSV file using PHP [duplicate]
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edited Aug 23 '17 at 17:04
answered Feb 4 '12 at 7:30
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