Switch pypi links to https

To which the http version redirects permanently

docs/patterns/caching.rst

@@ -27,7 +27,7 @@ cache that keeps the item stored in the memory of the Python interpreter::
     cache = SimpleCache()
 
 If you want to use memcached, make sure to have one of the memcache modules
-supported (you get them from `PyPI <http://pypi.python.org/>`_) and a
+supported (you get them from `PyPI <https://pypi.python.org/>`_) and a
 memcached server running somewhere.  This is how you connect to such an
 memcached server then::
 

docs/patterns/distribute.rst

@@ -161,6 +161,6 @@ folder instead of copying the data over.  You can then continue to work on
 the code without having to run `install` again after each change.
 
 
-.. _distribute: http://pypi.python.org/pypi/distribute
-.. _pip: http://pypi.python.org/pypi/pip
+.. _distribute: https://pypi.python.org/pypi/distribute
+.. _pip: https://pypi.python.org/pypi/pip
 .. _distribute_setup.py: http://python-distribute.org/distribute_setup.py

docs/patterns/sqlalchemy.rst

@@ -20,7 +20,7 @@ there is a Flask extension that handles that for you.  This is recommended
 if you want to get started quickly.
 
 You can download `Flask-SQLAlchemy`_ from `PyPI
-<http://pypi.python.org/pypi/Flask-SQLAlchemy>`_.
+<https://pypi.python.org/pypi/Flask-SQLAlchemy>`_.
 
 .. _Flask-SQLAlchemy: http://packages.python.org/Flask-SQLAlchemy/
 

docs/patterns/wtforms.rst

@@ -17,7 +17,7 @@ forms.
    The `Flask-WTF`_ extension expands on this pattern and adds a few
    handful little helpers that make working with forms and Flask more
    fun.  You can get it from `PyPI
-   <http://pypi.python.org/pypi/Flask-WTF>`_.
+   <https://pypi.python.org/pypi/Flask-WTF>`_.
 
 .. _Flask-WTF: http://packages.python.org/Flask-WTF/