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Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
...<string>
e.g:
apt-cache search freetype | grep dev
Redhat/CentOS/Fedora:
yum -y install freetype-devel
To search for packages on Redhat/CentOS/Fedora based systems:
yum search <string>
e.g:
yum search freetype | grep devel
Mac OS X: (via Homebrew)
brew install freetype...
Recursively remove files
Does anyone have a solution to remove those pesky ._ and .DS_Store files that one gets after moving files from a Mac to A Linux Server?
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Package cairo was not found in the pkg-config search path. Node j.s install canvas issue
... edited Mar 31 '16 at 13:55
Jossef Harush
22.4k77 gold badges8484 silver badges9494 bronze badges
answered May 14 '14 at 8:09
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Simple regular expression for a decimal with a precision of 2
...e
deci_num_checker = re.compile(r"""^[0-9]+(\.[0-9]{1,2})?$""")
valid = ["123.12", "2", "56754", "92929292929292.12", "0.21", "3.1"]
invalid = ["12.1232", "2.23332", "e666.76"]
assert len([deci_num_checker.match(x) != None for x in valid]) == len(valid)
assert [deci_num_checker.match(x) == None fo...
Convert from ASCII string encoded in Hex to plain ASCII?
...t;>> 'abcd'[0::2] # alternates
'ac'
>>> zip('abc', '123') # pair up
[('a', '1'), ('b', '2'), ('c', '3')]
>>> chr(32) # ascii to character
' '
will look at binascii now...
>>> print binascii.unhexlify('7061756c')
paul
cool (and i h...
How to change or add theme to Android Studio?
...
123
//you need to go to the File-> settings
in that choose IDE settings-> Appearance in tha...
How to show multiline text in a table cell
...er each line (see below) and it works for me.
George Benson </br>
123 Main Street </br>
New York, Ny 12344 </br>
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Intellij shortcut to convert code to upper or lower case?
... like. Here: Toggle Case.
Or ⌘ Command + Shift + U if you are using Mac OSX.
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Remove duplicated rows
...for larger data sets
library(microbenchmark)
library(data.table)
set.seed(123)
DF <- as.data.frame(matrix(sample(1e8, 1e5, replace = TRUE), ncol = 10))
DT <- copy(DF)
setDT(DT)
microbenchmark(unique(DF), unique(DT))
# Unit: microseconds
# expr min lq mean median ...
grep a tab in UNIX
...inst my pattern. Attempting to use that syntax prints nothing. (Is the Mac OS X variant different?)
– futureelite7
Feb 28 '10 at 15:42
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