diff --git a/docs/dev/env.rst b/docs/dev/env.rst
index 50ddbb0..9e1cee1 100644
--- a/docs/dev/env.rst
+++ b/docs/dev/env.rst
@@ -137,6 +137,8 @@ PyCharm / IntelliJ IDEA
`PyCharm `_ is developed by JetBrains, also
known for IntelliJ IDEA. Both share the same code base and most of PyCharm's
features can be brought to IntelliJ with the free `Python Plug-In `_.
+There are two versions of PyCharm: Professional Edition (Free 30-day trial)
+and Community Edition(Apache 2.0 License) with less features.
Eclipse
@@ -148,8 +150,11 @@ The most popular Eclipse plugin for Python development is Aptana's
Komodo IDE
----------
+
`Komodo IDE `_ is developed by
ActiveState and is a commercial IDE for Windows, Mac, and Linux.
+`KomodoEdit `_ is the open source
+alternative.
Spyder
@@ -185,6 +190,19 @@ systems. Installers for these platforms can be downloaded from the website.
NINJA-IDE is open-source software (GPLv3 licence) and is developed in Python and
Qt. The source files can be downloaded from `GitHub `_.
+
+Eric (The Eric Python IDE)
+--------------------------
+
+`Eric `_ is a full featured Python IDE
+offering sourcecode autocompletion, syntax highlighting, support for version
+control systems, python 3 support, integrated web browser, python shell,
+integrated debugger and a flexible plug-in system. Written in python, it is
+based on the Qt gui toolkit, integrating the Scintilla editor control. Eric
+is an open-source software (GPLv3 licence) with more than ten years of active
+development.
+
+
Interpreter Tools
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