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Upgrade python packages from requirements.txt using pip command
...switch to unpinned versions in your requirements file.
Example:
lxml>=2.2.0
This would upgrade lxml to any version newer than 2.2.0
lxml>=2.2.0,<2.3.0
This would upgrade lxml to the most recent version between 2.2.0 and 2.3.0.
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Is there a standard naming convention for git tags? [closed]
I've seen a lot of projects using v1.2.3 as the naming convention for tags in git. I've also seen some use 1.2.3 . Is there an officially endorsed style, or are there any good arguments for using either?
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Python csv string to array
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266
You can convert a string to a file object using io.StringIO and then pass that to the csv modu...
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
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26
Since dplyr 0.8 group_by gained the .drop argument that does just what you asked for:
df = dat...
MySQL get row position in ORDER BY
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120
Use this:
SELECT x.id,
x.position,
x.name
FROM (SELECT t.id,
t...
How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved
...t know what I've done incorrectly, but I can't include JSTL. I have jstl-1.2.jar, but unfortunately I get exception:
16 An...
Are negative array indexes allowed in C?
I was just reading some code and found that the person was using arr[-2] to access the 2nd element before the arr , like so:
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How to make rpm auto install dependencies
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edited Dec 14 '12 at 11:34
answered Dec 14 '12 at 11:24
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What is a plain English explanation of “Big O” notation?
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How to get the second column from command output?
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29
Or use sed & regex.
<some_command> | sed 's/^.* \(".*"$\)/\1/'
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