Install third-party packages offline in python disconnected environment, mainly relying on the related usage of pip
First look at the corresponding parameters of pip, execute pip -h on the command line, you can see that there are many parameters:
Method 1. Download the relevant installation packages one by one on another computer, and install the corresponding installation packages one by one on the disconnected host
pip download -d F:\ZK\py\whl\py387 xlrd
pip download -d F:\ZK\py\whl\py387 -i https://pypi.doubanio.com/simple/ xlwt
pip download -d F:\ZK\py\whl\py387 -i https://pypi.doubanio.com/simple/ --only-binary=:all: --python-version 38 pandas
pip install --no-index --find-links=F:\ZK\py\whl\py387\ xlrd
pip install --no-index --find-links=F:\ZK\py\whl\py387\ xlwt
pip install --no-index --find-links=F:\ZK\py\whl\py387\ pandas
pip listCommand 1: Download the xlrd library at the default https://pypi.org/simple location
Command 2: Download the xlwt library on Douban, faster
Command 3: Download the pandas library based on python3.8
Then execute the following command on the offline host:
Command 4-6: Install the corresponding library from the folder where whl is stored
Command 7: View currently installed libraries
Method 2. Generate a library list on the computer where the python library is installed, download the library in batches, and install the corresponding backup on the disconnected host
pip freeze > requirements.txt
pip download -d F:\ZK\py\whl\py387 -i https://pypi.doubanio.com/simple/ -r requirements.txt
Then execute the following command on the offline host:
pip install --no-index --find-links=F:\ZK\py\whl\py387 -r requirement.txtMethod two is more convenient!
Finally, attach the pip parameter: pip -h
Usage:
pip <command> [options]Commands:
install Install packages.
download Download packages.
uninstall Uninstall packages.
freeze Output installed packages in requirements format.
list List installed packages.
show Show information about installed packages.
check Verify installed packages have compatible dependencies.
config Manage local and global configuration.
search Search PyPI for packages.
cache Inspect and manage pip's wheel cache.
wheel Build wheels from your requirements.
hash Compute hashes of package archives.
completion A helper command used for command completion.
debug Show information useful for debugging.
help Show help for commands.General Options:
-h, --help Show help.
--isolated Run pip in an isolated mode, ignoring
environment variables and user configuration.
-v, --verbose Give more output. Option is additive, and can be
used up to 3 times.
-V, --version Show version and exit.
-q, --quiet Give less output. Option is additive, and can be
used up to 3 times (corresponding to WARNING,
ERROR, and CRITICAL logging levels).
--log <path> Path to a verbose appending log.
--no-input Disable prompting for input.
--proxy <proxy> Specify a proxy in the form
[user:passwd@]proxy.server:port.
--retries <retries> Maximum number of retries each connection should
attempt (default 5 times).
--timeout <sec> Set the socket timeout (default 15 seconds).
--exists-action <action> Default action when a path already exists:
(s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.
--trusted-host <hostname> Mark this host or host:port pair as trusted,
even though it does not have valid or any HTTPS.
--cert <path> Path to alternate CA bundle.
--client-cert <path> Path to SSL client certificate, a single file
containing the private key and the certificate
in PEM format.
--cache-dir <dir> Store the cache data in <dir>.
--no-cache-dir Disable the cache.
--disable-pip-version-check
Don't periodically check PyPI to determine
whether a new version of pip is available for
download. Implied with --no-index.
--no-color Suppress colored output
--no-python-version-warning
Silence deprecation warnings for upcoming
unsupported Pythons.
--use-feature <feature> Enable new functionality, that may be backward
incompatible.
--use-deprecated <feature> Enable deprecated functionality, that will be
removed in the future.