Python3 Virtual Environment setup under Windows

To avoid installing too many Python toolkits causing the Python directory to be bloated and even incompatible between packages, it is necessary to install the virtual Python environment--virtualenv for Python. With virtualenv installed, you can create any number of small virtual Python environments based on tasks, install specific packages for specific projects, and delete the corresponding virtual environments directly after the experiment.

Virtualenv can download the installation by visiting the following link: http://pypi.python.org/pypi/virtualenv.

Open cmd under Windows platform and go to the VIRTUALENV installation package to extract the directory.

$ python Install setup.py

Once the installation is complete, you can use Virtualenv to create a new environment. Virtualenv-h View help information. Create and activate the virtual environment.

$ virtualenv geo_env$ CD geo_env\scripts$ start activate

Install the required packages in a virtual environment

$ pip Install Pygeocoder

Run your own project in a virtual environment

From pygeocoder import geocoderif __name__ = = ' __main__ ': address = ' 207 N. Defiance St, Archbold, OH ' Print (geocoder.ge Ocode (address) [0].coordinates]

Run the above code to get the latitude and longitude of the address:

$ python search.py (41.521954,-84.306691)

End of experiment, close virtual environment

$ deactivate

If you do not need the environment, you can delete the directory for that virtual environment. If you need to create a new environment based on a virtual environment, you can

$ virtualenv--download-p Geo_env\scripts\python.exe geo_env_new

The new geo_env_new environment has a geo_env of existing packages.

If the Pycharm ide,pycharm is installed, the virtualenv is integrated and the new project enters

File-->settings-->project-->project Interpreter

Select an existing environment, or add local, or create virtualenv.

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Python3 Virtual Environment setup under Windows