diff --git a/.gitignore b/.gitignore
index f127f38b..ba776166 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,5 @@ _auto2to3*
 .tox/
 .vagrant
 /.coverage
-/htmlcov/
\ No newline at end of file
+/htmlcov/
+/env/
diff --git a/maint/requirements.txt b/maint/requirements.txt
new file mode 100644
index 00000000..30e0d32e
--- /dev/null
+++ b/maint/requirements.txt
@@ -0,0 +1,21 @@
+# Frozen pip requirements for tools used in the development of tornado
+
+# Tornado's optional dependencies
+MySQL-python==1.2.3
+Twisted==11.1.0
+pycurl==7.19.0
+
+# Other useful tools
+Sphinx==1.1.2
+coverage==3.5.1
+pyflakes==0.5.0
+tox==1.3
+virtualenv==1.7
+
+# Indirect dependencies
+Jinja2==2.6
+Pygments==1.4
+docutils==0.8.1
+py==1.4.6
+wsgiref==0.1.2
+zope.interface==3.8.0