diff --git a/doc/apibuild.py b/doc/apibuild.py
index ab0f4b72..6e59677c 100755
--- a/doc/apibuild.py
+++ b/doc/apibuild.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 #
 # This is the API builder, it parses the C sources and build the
 # API formal description in XML.
diff --git a/python/generator.py b/python/generator.py
index df9fecec..025e58a1 100755
--- a/python/generator.py
+++ b/python/generator.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 #
 # generate python wrappers from the XML API description
 #
diff --git a/python/tests/basic.py b/python/tests/basic.py
index 7d9f9867..46355de7 100755
--- a/python/tests/basic.py
+++ b/python/tests/basic.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 import sys
 import libxml2
 # Memory debug specific
diff --git a/python/tests/exslt.py b/python/tests/exslt.py
index de5e42bf..b859d187 100755
--- a/python/tests/exslt.py
+++ b/python/tests/exslt.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 import sys
 import libxml2
 # Memory debug specific
diff --git a/python/tests/extelem.py b/python/tests/extelem.py
index 0e1bf4bf..2528a399 100644
--- a/python/tests/extelem.py
+++ b/python/tests/extelem.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 import sys
 import string
 import libxml2
diff --git a/python/tests/extfunc.py b/python/tests/extfunc.py
index a775494a..0853a55e 100755
--- a/python/tests/extfunc.py
+++ b/python/tests/extfunc.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 import sys
 import string
 import libxml2
diff --git a/python/tests/pyxsltproc.py b/python/tests/pyxsltproc.py
index 43108c23..f2469243 100755
--- a/python/tests/pyxsltproc.py
+++ b/python/tests/pyxsltproc.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python -u
+#!/usr/bin/env python
 #
 # The exercise of rewriting xsltproc on top of the python
 # bindings, not complete yet and shows up the things missing