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How To Install Python Packages – Part V

How To Install Python Packages – Part V

Posted December 6, 2019 at 7:30 am

Madhuri Sangaraju , Jay Parmar
QuantInsti

See the previous installment in this series here.

Version of the package

PyPI lets the developer submit any number of versions of the package. It holds a record for each combination of package name and version submitted in the repository.

The ‘backtrader‘ package also has different versions available. You can check for them here: https://pypi.org/project/backtrader/1.9.70.122/#history

Using a different version of the Python package

If you want to use a different version of the package, you can install that using the following command.

Let us install the 1.9.68.122 version of the ‘backtrader’ package.

# Install a specific version of the package
!pip install backtrader==1.9.68.122

How to install Python packages

Check for the version of the package

You can use the following syntax to check for the version of the package.

`package_name.__version__`

But first, you need to import the package. You can check for the version of the ‘backtrader’ package as follows.

# Import the package
Import backtrader
# Check the version of the package
backtrader._version_

Stay tuned for the next installment, in which the authors will discuss dir()function.

Visit QuantInsti website to download readily available Python commands.

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Information posted on IBKR Campus that is provided by third-parties does NOT constitute a recommendation that you should contract for the services of that third party. Third-party participants who contribute to IBKR Campus are independent of Interactive Brokers and Interactive Brokers does not make any representations or warranties concerning the services offered, their past or future performance, or the accuracy of the information provided by the third party. Past performance is no guarantee of future results.

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