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Fastest check if row exists in PostgreSQL
...mit it to 1 row. Should perform better. Have a look at edited answer from @aix for that.
– Fabian Barney
Sep 19 '11 at 13:44
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pytest: assert almost equal
...ld=0.0001):
return abs(x-y) < threshold
assert all(map(almost_equal, zip((1.32, 2.4), i_return_tuple_of_two_floats())
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Add leading zeroes/0's to existing Excel values to certain length
... and never came across this -- will use anytime I have mangled Excel-based zip code data in the future.
– Mark A
Oct 21 '10 at 22:40
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How to use mongoimport to import csv
...lder version of MongoDB?
$ cat > locations.csv
Name,Address,City,State,ZIP
Jane Doe,123 Main St,Whereverville,CA,90210
John Doe,555 Broadway Ave,New York,NY,10010
ctrl-d
$ mongoimport -d mydb -c things --type csv --file locations.csv --headerline
connected to: 127.0.0.1
imported 3 objects
$ mon...
滚动布局管理器拓展 - ScrollArrangementHandler · App Inventor 2 中文网
... 最后更新：2017.12.25 (v3)
拓展文件：ScrollArrangementHandlers.aix
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How do I extract the contents of an rpm?
...SSION=`($EXTRACTOR |file -) 2>/dev/null`
if echo $COMPRESSION |grep -q gzip; then
DECOMPRESSOR=gunzip
elif echo $COMPRESSION |grep -q bzip2; then
DECOMPRESSOR=bunzip2
elif echo $COMPRESSION |grep -iq xz; then # xz and XZ safe
DECOMPRESSOR=unxz
elif echo $COMPRESSION |grep ...
What MIME type should I use for CSV?
.../tr><tr></tr><tr><td></td><td>HTML (zipped)</td><td>application/zip</td></tr><tr><td></td><td>Plain text</td><td>text/plain</td></tr><tr><td></td><td>Rich text</t...
Difference between jar and war in Java
...Tips: Difference between ear jar and war files:
These files are simply zipped files
using the java jar tool. These files are
created for different purposes. Here
is the description of these files:
.jar files: The .jar files contain
libraries, resources and
accessories files lik...
how do I make a single legend for many subplots with matplotlib?
...d need to merge them both use this: handles, labels = [(a + b) for a, b in zip(ax1.get_legend_handles_labels(), ax2.get_legend_handles_labels())]
– Bill
Sep 4 '19 at 21:32
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What is a Python egg?
...rseded by Wheel packaging.
Same concept as a .jar file in Java, it is a .zip file with some metadata files renamed .egg, for distributing code as bundles.
Specifically: The Internal Structure of Python Eggs
A "Python egg" is a logical structure embodying the release of a
specific version of...