python bottle

1Bottle is a WSGI micro web-framework for the Python programming language. It is designed to be fast, simple and lightweight, and is distributed as a single file module with no dependencies other than the Python Standard Library. The same module runs with Python 2.7 and 3.x. 
2To install:
3
4pip install bottle

1# install bottle (basic, if path is not set yet)
2py -m pip install bottle
3# or set PATH to use pip:
4setx PATH "%PATH%;C:\<path\to\python\directory\>\Scripts"
5pip install bottle
6# or
7pip3 install bottle --upgrade
8# if "connection error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed" [!]:
9py -m pip install --trusted-host pypi.python.org pip bottle
10# if PermissionError: [WinError 5] Access is denied
11py -m pip install --user bottle
12# or via creating a virtual environment venv:
13py -m venv c:\path\to\new\environment
14# then execute:
15c:\path\to\new\environment\Scripts\activate.bat

1pip install bottle