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Installing Google Protocol Buffers on mac
I would like to install the older version of Google Protocol Buffers (protobuf-2.4.1) on mac using Terminal command line. I tried with brew install protobuf , but the latest version 2.5.0 has been installed. Is it possible to install the older version from terminal.
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Query grants for a table in postgres
... for specific databases, schemas, or tables), with the privileges shown in order so that it's easy to see if a specific privilege is granted or not:
SELECT grantee
,table_catalog
,table_schema
,table_name
,string_agg(privilege_type, ', ' ORDER BY privilege_type) AS privilege...
What is the difference between :focus and :active?
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Nit: the order of focus and active affects the state of a HTML button if there is no :active:focus state - Putting :active state after :focus, I get the active changes when I hit tab and hit space. If :focus is last, I never see the a...
How to gracefully handle the SIGKILL signal in Java
...acefully (SIGTERM from the manager process) or a shutdown has occurred (in order to relaunch automatically the job on startup).
As a basis, I always make my long-running threads periodically aware of interrupted status and throw an InterruptedException if they interrupted. This enables execution fi...
Rename all files in directory from $filename_h to $filename_half?
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Just use bash, no need to call external commands.
for file in *_h.png
do
mv "$file" "${file/_h.png/_half.png}"
done
Do not add #!/bin/sh
For those that need that one-liner:
for file in *.png; do mv "$file" "${file/_h.png/_half.png}"; done
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“Large data” work flows using pandas
... one contains different fields, or do they have some records per file with all of the fields in each file?
Do you ever select subsets of rows (records) based on criteria (e.g. select the rows with field A > 5)? and then do something, or do you just select fields A, B, C with all of the records (a...
Exporting functions from a DLL with dllexport
...ain C exports, use a C project not C++. C++ DLLs rely on name-mangling for all the C++isms (namespaces etc...). You can compile your code as C by going into your project settings under C/C++->Advanced, there is an option "Compile As" which corresponds to the compiler switches /TP and /TC.
If you ...
What's the UIScrollView contentInset property for?
... answered Dec 31 '09 at 1:21
jballjball
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How to step through Python code to help debug issues?
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Yes! There's a Python debugger called pdb just for doing that!
You can launch a Python program through pdb by using pdb myscript.py or python -m pdb myscript.py.
There are a few commands you can then issue, which are documented on the pdb page.
Some usef...
Why is Python 3.x's super() magic?
In Python 3.x, super() can be called without arguments:
1 Answer
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