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How do I install cygwin components from the command line?
...arate them with commas. e.g. in DOS, type setup-x86_64 --packages="openssh,python"
– Michael Scheper
Mar 19 '14 at 23:00
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Regex: Specify “space or start of string” and “space or end of string”
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for python, replace (?<=\s|^) with (?:(?<=\s)|(?<=^)). Otherwise, you get error: look-behind requires fixed-width pattern
– user2426679
Aug 31 '16 at 20:06
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Unique (non-repeating) random numbers in O(1)?
...roposed standard method to achieve this. I've experimented with some basic Python code which is based on the AES-FFX idea, although not fully conformant--see Python code here. It can e.g. encrypt a counter to a random-looking 7-digit decimal number, or a 16-bit number. Here is an example of radix 10...
How to see full symlink path
...t have either of the above installed, you can do the following if you have python 2.6 (or later) installed
python -c 'import os.path; print(os.path.realpath("symlinkName"))'
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Remove unwanted parts from strings in a column
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@LucaGuarro from the python docs: "The r prefix, making the literal a raw string literal, is needed in this example because escape sequences in a normal “cooked” string literal that are not recognized by Python, as opposed to regular expressi...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...地配置文件，而 git submodule update 则从该项目中抓取所有数据并检出父项目中列出的合适的提交。
$ git submodule init
Submodule 'DbConnector' (https://github.com/chaconinc/DbConnector) registered for path 'DbConnector'
$ git submodule update
Cloning into 'D...
Installing Latest version of git in ubuntu
...nd, install it first with
sudo apt-get install software-properties-common python-software-properties
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How are feature_importances in RandomForestClassifier determined?
...ass:
https://github.com/pjh2011/rf_perm_feat_import
Edit: This works for Python 2.7, not 3
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How to write to an existing excel file without overwriting data (using pandas)?
...'engine')
writer = pd.ExcelWriter(filename, engine='openpyxl')
# Python 2.x: define [FileNotFoundError] exception if it doesn't exist
try:
FileNotFoundError
except NameError:
FileNotFoundError = IOError
try:
# try to open an existing workbook
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How to check if command line tools is installed
...d CLT for installing packages as below.
Installing sphinx-doc dependency: python
Warning: Building python from source:
The bottle needs the Apple Command Line Tools to be installed.
You can install them, if desired, with:
xcode-select --install
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