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Do a “git export” (like “svn export”)?
...your archive. Read more...
Note: If you are interested in exporting the index, the command is
git checkout-index -a -f --prefix=/destination/path/
(See Greg's answer for more details)
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...ng time reader first time poster! I'm playing around with the boost::multi_index container stuff and have a rather in-depth question that hopefully a boost or C++ container expert might know (my knowledge in C++ containers is pretty basic). For reference, the boost documentation on composite keys ca...
Postgresql: Conditionally unique constraint
... conditional) UNIQUE constraint - however, you can create a partial unique index. PostgreSQL uses unique indexes to implement unique constraints, so the effect is the same, you just won't see the constraint listed in information_schema.
CREATE UNIQUE INDEX stop_myc ON stop (col_a) WHERE (col_b is N...
Xcode stuck on Indexing
...g for 2 months stopped working for no reason because Xcode got stucked on "Indexing". I can't Build the project anymore. If I try to build, Xcode freezes and I have to force quit. This happens only with this project.
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Remove .php extension with .htaccess
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this will make /index/bla/bla to be the same as index.php
– elkebirmed
Jan 10 '16 at 18:47
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
... OP's code is unpythonic for everyone looking at this - in Python we avoid indexes (slower, uglier). The correct way is as per @DavidRobinson's answer: dict(zip(names, d.values())). Of course this code also relies on values being sorted as names which is by no means guaranteed.
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Pythonic way to find maximum value and its index in a list?
...value in a list, I can just write max(List) , but what if I also need the index of the maximum value?
10 Answers
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How to take column-slices of dataframe in pandas
...precated. Use .loc
See the deprecation in the docs
.loc uses label based indexing to select both rows and columns. The labels being the values of the index or the columns. Slicing with .loc includes the last element.
Let's assume we have a DataFrame with the following columns:
foo, bar, quz...
Convert Python dict into a dataframe
...DataFrame(d)
ValueError: If using all scalar values, you must must pass an index
You could take the items from the dictionary (i.e. the key-value pairs):
In [11]: pd.DataFrame(d.items()) # or list(d.items()) in python 3
Out[11]:
0 1
0 2012-07-02 392
1 2012-07-06 392
2 201...
python pandas dataframe to dictionary
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See the docs for to_dict. You can use it like this:
df.set_index('id').to_dict()
And if you have only one column, to avoid the column name is also a level in the dict (actually, in this case you use the Series.to_dict()):
df.set_index('id')['value'].to_dict()
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