diff --git a/Library/Homebrew/extend/ENV/std.rb b/Library/Homebrew/extend/ENV/std.rb
index cf900dbed1..71e89a6664 100644
--- a/Library/Homebrew/extend/ENV/std.rb
+++ b/Library/Homebrew/extend/ENV/std.rb
@@ -53,8 +53,6 @@ module Stdenv
       self['CMAKE_FRAMEWORK_PATH'] = HOMEBREW_PREFIX/"Frameworks"
     end
 
-    self['PYTHONDONTWRITEBYTECODE'] = "1" if ARGV.build_bottle?
-
     # Os is the default Apple uses for all its stuff so let's trust them
     set_cflags "-Os #{SAFE_CFLAGS_FLAGS}"
 
diff --git a/Library/Homebrew/extend/ENV/super.rb b/Library/Homebrew/extend/ENV/super.rb
index 4879ab820f..cbfd3dd8cf 100644
--- a/Library/Homebrew/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/ENV/super.rb
@@ -84,7 +84,6 @@ module Superenv
     self['CMAKE_LIBRARY_PATH'] = determine_cmake_library_path
     self['ACLOCAL_PATH'] = determine_aclocal_path
     self['M4'] = MacOS.locate("m4") if deps.include? "autoconf"
-    self['PYTHONDONTWRITEBYTECODE'] = "1" if ARGV.build_bottle?
 
     # The HOMEBREW_CCCFG ENV variable is used by the ENV/cc tool to control
     # compiler flag stripping. It consists of a string of characters which act