Fix broken links

Author: dukecat0

source/guides/analyzing-pypi-package-downloads.rst

@@ -53,7 +53,7 @@ In order to use `Google BigQuery`_ to query the `public PyPI download
 statistics dataset`_, you'll need a Google account and to enable the BigQuery
 API on a Google Cloud Platform project. You can run the up to 1TB of queries
 per month `using the BigQuery free tier without a credit card
-<https://cloud.google.com/blog/big-data/2017/01/how-to-run-a-terabyte-of-google-bigquery-queries-each-month-without-a-credit-card>`__
+<https://cloud.google.com/blog/products/data-analytics/query-without-a-credit-card-introducing-bigquery-sandbox>`__
 
 - Navigate to the `BigQuery web UI`_.
 - Create a new project.

source/guides/installing-using-linux-tools.rst

@@ -94,9 +94,9 @@ To install pip, wheel, and setuptools, in a parallel, non-system environment
 
    Be aware that collections may not contain the most recent versions.
 
-2. Enable the `IUS repository <https://ius.io/GettingStarted/>`_ and
+2. Enable the `IUS repository <https://ius.io/setup>`_ and
    install one of the `parallel-installable
-   <https://ius.io/SafeRepo/#parallel-installable-package>`_
+   <https://ius.io/usage#parallel-installable-packages>`_
    Pythons, along with pip, setuptools, and wheel, which are kept fairly up to
    date.
 

source/guides/packaging-binary-extensions.rst

@@ -165,7 +165,7 @@ wrapper modules up to date.
   hand, however, and is very repetitive, so may not be a good choice for
   wrapping large APIs.
 
-* `pybind11 <https://pybind11.readthedocs.io/en/stable//en/stable/>`__ is a pure C++11 library
+* `pybind11 <https://pybind11.readthedocs.io/en/stable/>`__ is a pure C++11 library
   that provides a clean C++ interface to the CPython (and PyPy) C API. It
   does not require a pre-processing step; it is written entirely in
   templated C++. Helpers are included for Setuptools or CMake builds. It

source/guides/packaging-namespace-packages.rst

@@ -236,7 +236,7 @@ to :func:`~setuptools.setup` in :file:`setup.py`. For example:
 A complete working example of two pkg_resources-style namespace packages can be found
 in the `pkg_resources namespace example project`_.
 
-.. _setuptools: https://setuptools.readthedocs.io
+.. _setuptools: https://setuptools.readthedocs.io/en/latest/
 .. _pkg_resources.declare_namespace:
     https://setuptools.readthedocs.io/en/latest/setuptools.html#namespace-packages
 .. _pkg_resources namespace example project:

source/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows.rst

@@ -144,4 +144,4 @@ sure that your release pipeline remains healthy!
 .. _`pypa/gh-action-pypi-publish GitHub Action`:
    https://github.com/marketplace/actions/pypi-publish
 .. _Secrets:
-   https://help.github.com/en/articles/virtual-environments-for-github-actions#creating-and-using-secrets-encrypted-variables
+   https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#creating-and-using-secrets-encrypted-variables

source/overview.rst

@@ -290,7 +290,6 @@ A similar model involves installing an alternative Python
 distribution, but does not support arbitrary operating system-level
 packages:
 
-* `Enthought Canopy <https://www.enthought.com/product/canopy/>`_
 * `ActiveState ActivePython <https://www.activestate.com/products/python/>`_
 * `WinPython <http://winpython.github.io/>`_
 
@@ -362,7 +361,7 @@ data centers, though certain complex applications can benefit from
 this packaging. Technologies are Python agnostic, and include:
 
 * `Vagrant <https://www.vagrantup.com/>`_
-* `VHD <https://en.wikipedia.org/wiki/VHD_(file_format)>`_, `AMI <https://en.wikipedia.org/wiki/Amazon_Machine_Image>`_, and `other formats <https://docs.openstack.org/image-guide/image-formats.html>`_
+* `VHD <https://en.wikipedia.org/wiki/VHD_(file_format)>`_, `AMI <https://en.wikipedia.org/wiki/Amazon_Machine_Image>`_, and `other formats <https://docs.openstack.org/glance/pike/user/formats.html>`_
 * `OpenStack <https://www.redhat.com/en/topics/openstack>`_ - A cloud management system in Python, with extensive VM support
 
 Bringing your own hardware
@@ -405,7 +404,7 @@ Debian, Ubuntu, etc.) or `RPM
 <https://en.wikipedia.org/wiki/RPM_Package_Manager>`_ (for Red Hat,
 Fedora, etc.), and use that built-in package manager to take care of
 installation, and even deployment. You can even use `FPM
-<https://fpm.readthedocs.io/en/latest/source/virtualenv.html>`_ to
+<https://fpm.readthedocs.io/en/latest/cli-reference.html#virtualenv>`_ to
 generate both deb and RPMs from the same source.
 
 In most deployment pipelines, the OS package manager is just one piece

source/specifications/index.rst

@@ -6,7 +6,7 @@ PyPA specifications
 This is a list of currently active interoperability specifications maintained
 by the Python Packaging Authority. The process for updating these standards,
 and for proposing new ones, is documented on
-`pypa.io <https://www.pypa.io/en/latest//en/latest/specifications/>`__.
+`pypa.io <https://www.pypa.io/en/latest/specifications/>`__.
 
 
 Package Distribution Metadata

source/tutorials/installing-packages.rst

@@ -462,7 +462,7 @@ directory to your :envvar:`PATH`:
   ``PATH`` changes to take effect.
 
 .. _user base: https://docs.python.org/3/library/site.html#site.USER_BASE
-.. _modifying ~/.profile: https://stackoverflow.com/a/14638025
+.. _modifying ~/.profile: https://stackoverflow.com/questions/14637979/how-to-permanently-set-path-on-linux-unix/14638025#14638025
 .. _Control Panel: https://docs.microsoft.com/en-us/windows/win32/shell/user-environment-variables?redirectedfrom=MSDN
 
 Requirements files