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String formatting in Python 3
... # '0.20'
"conversion rate: {:.2%}".format(self.goals / self.shots) # '20.45%'
"conversion rate: {:.0%}".format(self.goals / self.shots) # '20%'
"self: {!s}".format(self) # 'Player: Bob'
"self: {!r}".format(self) # '<__main__.Player instance at 0x00BF7260>'
"games: {:>3}".format(player1.g...
How do I install an old version of Django on virtualenv?
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Daniel RosemanDaniel Roseman
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Compress files while reading data from STDIN
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185
Yes, use gzip for this. The best way is to read data as input and redirect the compressed to out...
How to get awaitable Thread.Sleep?
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Jon SkeetJon Skeet
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How can I make gdb save the command history?
...This defaults to the value of the environment variable GDBHISTSIZE, or to 256 if this variable is not set. Non-numeric values of GDBHISTSIZE are ignored. If size is unlimited or if GDBHISTSIZE is either a negative number or the empty string, then the number of commands gdb keeps in the history list ...
Eclipse: Exclude specific packages when autocompleting a class name
...cent eclipse (I have right now a eclipse 3.6Mx, but this should work for 3.5.x as well), you are not limited to package pattern only in the Type Filter.
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Rails migrations: Undo default setting for a column
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Rails 5+
def change
change_column_default( :table_name, :column_name, from: nil, to: false )
end
Rails 3 and Rails 4
def up
change_column_default( :table_name, :column_name, nil )
end
def down
change_column_default( :tab...
'str' object does not support item assignment in Python
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105
In Python, strings are immutable, so you can't change their characters in-place.
You can, howev...
Regular expression for a string that does not start with a sequence
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edited May 22 '09 at 20:05
answered May 22 '09 at 18:57
Gu...
How to get last inserted row ID from WordPress database?
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