Python packaging - Pip trusted host issues

For quite some time,I have not updated pip. Yesterday, when I updated pip using our local PyPI server to its latest version - 7.0.3 for python2.7, my simple attempt to install python packages failed. e.g. I was trying to install fuzzy module that deals with strings similarities.

root@psj-desktop:~# pip install fuzzy -i http://osrepo.xxx.in/pypi/simpleCollecting fuzzy
  The repository located at osrepo.xxx.in is not a trusted or secure host and is being ignored. If this repository is available via HTTPS it is recommended to use HTTPS instead, otherwise you may silence this warning and allow it anyways with '--trusted-host osrepo.xxx.in'.
  Could not find a version that satisfies the requirement fuzzy (from versions: )
No matching distribution found for fuzzy

root@psj-desktop:~# pip install --pre fuzzy -i http://osrepo.xxx.in/pypi/simple
Collecting fuzzy
  The repository located at osrepo.xxx.in is not a trusted or secure host and is being ignored. If this repository is available via HTTPS it is recommended to use HTTPS instead, otherwise you may silence this warning and allow it anyways with '--trusted-host osrepo.xxx.in'.
  Could not find a version that satisfies the requirement fuzzy (from versions: )
No matching distribution found for fuzzy

Things became clear after reading pip developer documentation - https://media.readthedocs.org/pdf/pip/develop/pip.pdf
Another place you should look for is changelog in github repository - https://github.com/pypa/pip/

It is possible to create pip.conf in a number of ways:

On Unix the default configuration file is: $HOME/.config/pip/pip.conf or you can create globally under /etc/pip.conf
On Windows the configuration file is : %APPDATA%\pip\pip.ini

Sample /etc/pip.conf
---------------------------------
[global]
index-url = http://osrepo.xxx.in/pypi/simple
trusted-host = osrepo.xxx.in
disable-pip-version-check = true
allow-all-external=true
timeout = 120

Installation of Autopsy third party modules

Autopsy Forensic Browser is a graphical interface to the The Sleuth Kit and other digital investigation tools. Using both of them, you can analyze Windows and LINUX disks and file systems (NTFS, FAT, UFS1/2, Ext2/3, etc.). I was going through all the features of Autopsy on my desktop to gain first-hand experience.

A number of Autopsy modules are available here - http://wiki.sleuthkit.org/index.php?title=Autopsy_3rd_Party_Modules

For my reference, the procedure for installation of Autopsy module is given below:

• Navigate to the latest .nbm module file - e.g. https://github.com/williballenthin/Autopsy-WindowsRegistryIngestModule/tree/master/precompiled
• Click on the .nbm file so that the View Raw text appears.
• Right-click on the View Raw text and select Save Link As... to save the raw .nbm file.
• Start Autopsy and close the Welcome screen.
• From the menu, select Tools | Plugins.
• Open Downloaded tab and click the Add Plugins button.
• From the Add Plugins window, navigate to the downloaded .nbm module file and open it.
• Click Install and follow the wizard.