pip vs Twine

pip installs Python packages from PyPI and other package indexes, as well as from version control URLs, local project directories, and source archives. It supports source distributions and wheels, resolves dependencies, and can install an environment specified in a requirements file. Its install command can produce a JSON report of installed packages. pip runs on Linux, macOS, and Windows, and the current version supports CPython 3.10 through 3.15 and the latest PyPy3. Other operating systems and Python versions are not supported by its maintainers. It is commonly included in virtual environments and Python downloads from python.org; ensurepip and get-pip.py are also installation options. An experimental standalone zip application is available, but its documentation advises against production use. pip is free. It does not collect telemetry, though it sends non-identifying details such as Python version and operating system to the remote indexes it accesses. Remote tampering checks are not enabled by default; hash-checking mode and binary-only installs are listed as more secure options.

Twine publishes already-built Python package distributions to PyPI, TestPyPI, and other configured repositories, including private registries. It uploads source and binary files independently of the build system, so uploading does not require it to run setup.py. Twine accepts packaging formats including wheels, and its check command checks whether a distribution’s long description will render correctly on PyPI. It authenticates to PyPI over HTTPS using a verified connection, can sign files with GPG, and can upload files signed in advance. Repository settings can be supplied in a.pypirc file, command-line options, or environment variables, which can be useful on CI and build servers. Twine can store repository usernames and passwords with keyring, though headless Linux systems may need extra setup to store secrets securely. The package requires Python 3.10 or later, is licensed under Apache-2.0, and supports Linux, macOS, and Windows. Its plan is free. Twine is classified for developers and handles package publishing, but does not provide lockfile support, environment management, or dependency groups.