diff --git a/doc/check_docs.py b/doc/check_docs.py
index 18df02685c..2d8799341d 100755
--- a/doc/check_docs.py
+++ b/doc/check_docs.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys, glob
 
 sys.path.append("../modules/python/src2/")
diff --git a/doc/check_docs2.py b/doc/check_docs2.py
index a3606bd294..bf03754590 100755
--- a/doc/check_docs2.py
+++ b/doc/check_docs2.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import os, sys, fnmatch, re
 
 sys.path.append("../modules/python/src2/")
diff --git a/doc/conf.py b/doc/conf.py
index 40b8e27137..35073e051f 100755
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 #
 # opencvstd documentation build configuration file, created by
diff --git a/doc/ocv.py b/doc/ocv.py
index ba321928ab..ce750933b8 100755
--- a/doc/ocv.py
+++ b/doc/ocv.py
@@ -1,3 +1,4 @@
+#/usr/bin/env python
 # -*- coding: utf-8 -*-
 """
     ocv domain, a modified copy of sphinx.domains.cpp + shpinx.domains.python.
diff --git a/doc/patch_refman_latex.py b/doc/patch_refman_latex.py
index 2691746845..352c46cb56 100755
--- a/doc/patch_refman_latex.py
+++ b/doc/patch_refman_latex.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys
 
 f=open(sys.argv[1], "rt")
diff --git a/doc/pattern_tools/gen_pattern.py b/doc/pattern_tools/gen_pattern.py
index 455b3b6e8e..45b45af2db 100755
--- a/doc/pattern_tools/gen_pattern.py
+++ b/doc/pattern_tools/gen_pattern.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 """gen_pattern.py
 To run:
 -c 10 -r 12 -o out.svg
diff --git a/doc/pattern_tools/svgfig.py b/doc/pattern_tools/svgfig.py
index 04aa257357..bf182a8b09 100755
--- a/doc/pattern_tools/svgfig.py
+++ b/doc/pattern_tools/svgfig.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 # svgfig.py copyright (C) 2008 Jim Pivarski <jpivarski@gmail.com>
 #
 # This program is free software; you can redistribute it and/or
diff --git a/doc/reformat.py b/doc/reformat.py
index fb52075e90..00e4aae9e0 100755
--- a/doc/reformat.py
+++ b/doc/reformat.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import os, sys, re
 
 finput=open(sys.argv[1], "rt")
diff --git a/modules/contrib/doc/facerec/src/create_csv.py b/modules/contrib/doc/facerec/src/create_csv.py
index 54681afa99..71d773c017 100755
--- a/modules/contrib/doc/facerec/src/create_csv.py
+++ b/modules/contrib/doc/facerec/src/create_csv.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys
 import os.path
 
diff --git a/modules/gpu/misc/mark_nvidia.py b/modules/gpu/misc/mark_nvidia.py
index 7c1f212869..e8cc3e8417 100755
--- a/modules/gpu/misc/mark_nvidia.py
+++ b/modules/gpu/misc/mark_nvidia.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys, re
 
 spaces = '[\s]*'
diff --git a/modules/java/check-tests.py b/modules/java/check-tests.py
index 55118ca914..4cb80ff724 100755
--- a/modules/java/check-tests.py
+++ b/modules/java/check-tests.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys, os, re
 
 classes_ignore_list = (
diff --git a/modules/java/generator/gen_java.py b/modules/java/generator/gen_java.py
index 2287058a94..c60730fad3 100755
--- a/modules/java/generator/gen_java.py
+++ b/modules/java/generator/gen_java.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys, re, os.path
 from string import Template
 
diff --git a/modules/java/generator/gen_javadoc.py b/modules/java/generator/gen_javadoc.py
index 97eac702ad..3c697277b5 100755
--- a/modules/java/generator/gen_javadoc.py
+++ b/modules/java/generator/gen_javadoc.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import os, sys, re, string, glob
 from optparse import OptionParser
 
diff --git a/modules/java/generator/rst_parser.py b/modules/java/generator/rst_parser.py
index 65e66f7f9d..f4ef581904 100755
--- a/modules/java/generator/rst_parser.py
+++ b/modules/java/generator/rst_parser.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import os, sys, re, string, fnmatch
 allmodules = ["core", "flann", "imgproc", "ml", "highgui", "video", "features2d", "calib3d", "objdetect", "legacy", "contrib", "gpu", "androidcamera", "java", "python", "stitching", "ts", "photo", "nonfree", "videostab", "ocl"]
 verbose = False
diff --git a/modules/python/src2/cv.py b/modules/python/src2/cv.py
index 2d4daf08b0..4238d05f7a 100755
--- a/modules/python/src2/cv.py
+++ b/modules/python/src2/cv.py
@@ -1 +1,3 @@
+#/usr/bin/env python
+
 from cv2.cv import *
diff --git a/modules/python/src2/gen.py b/modules/python/src2/gen.py
index 2ffb445443..65cafc9900 100755
--- a/modules/python/src2/gen.py
+++ b/modules/python/src2/gen.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys
 from string import Template
 
diff --git a/modules/python/src2/gen2.py b/modules/python/src2/gen2.py
index e600a82f45..5381579ce4 100755
--- a/modules/python/src2/gen2.py
+++ b/modules/python/src2/gen2.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import hdr_parser, sys, re, os, cStringIO
 from string import Template
 
diff --git a/modules/python/src2/hdr_parser.py b/modules/python/src2/hdr_parser.py
index a18a4feb42..090ed6f64a 100755
--- a/modules/python/src2/hdr_parser.py
+++ b/modules/python/src2/hdr_parser.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import os, sys, re, string
 
 # the list only for debugging. The real list, used in the real OpenCV build, is specified in CMakeLists.txt
diff --git a/modules/python/test/calchist.py b/modules/python/test/calchist.py
index c371e73ce3..0a52258b20 100755
--- a/modules/python/test/calchist.py
+++ b/modules/python/test/calchist.py
@@ -1,5 +1,6 @@
-# Calculating and displaying 2D Hue-Saturation histogram of a color image
+#/usr/bin/env python
 
+# Calculating and displaying 2D Hue-Saturation histogram of a color image
 import sys
 import cv2.cv as cv
 
diff --git a/modules/python/test/camera_calibration.py b/modules/python/test/camera_calibration.py
index 989207c8a8..488dd15c62 100755
--- a/modules/python/test/camera_calibration.py
+++ b/modules/python/test/camera_calibration.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys
 import math
 import time
diff --git a/modules/python/test/findstereocorrespondence.py b/modules/python/test/findstereocorrespondence.py
index 9cc19412c2..8f11738cce 100755
--- a/modules/python/test/findstereocorrespondence.py
+++ b/modules/python/test/findstereocorrespondence.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys
 import cv2.cv as cv
 
diff --git a/modules/python/test/goodfeatures.py b/modules/python/test/goodfeatures.py
index e4c4b0a6fd..62907772ab 100755
--- a/modules/python/test/goodfeatures.py
+++ b/modules/python/test/goodfeatures.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import cv2.cv as cv
 import unittest
 
diff --git a/modules/python/test/leak1.py b/modules/python/test/leak1.py
index 49326dab50..dde5608951 100755
--- a/modules/python/test/leak1.py
+++ b/modules/python/test/leak1.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import cv2.cv as cv
 import numpy as np
 cv.NamedWindow('Leak')
diff --git a/modules/python/test/leak2.py b/modules/python/test/leak2.py
index ca511a40ec..af1cb0556c 100755
--- a/modules/python/test/leak2.py
+++ b/modules/python/test/leak2.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import cv2.cv as cv
 import numpy as np
 import time
diff --git a/modules/python/test/leak3.py b/modules/python/test/leak3.py
index 901d7be20f..f72afbbf08 100755
--- a/modules/python/test/leak3.py
+++ b/modules/python/test/leak3.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import cv2.cv as cv
 import math
 import time
diff --git a/modules/python/test/leak4.py b/modules/python/test/leak4.py
index 8d8ba8883a..dcfc5cfdc9 100755
--- a/modules/python/test/leak4.py
+++ b/modules/python/test/leak4.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import cv2.cv as cv
 import math
 import time
diff --git a/modules/python/test/precornerdetect.py b/modules/python/test/precornerdetect.py
index 49c8e076d9..29a6ca1ecd 100755
--- a/modules/python/test/precornerdetect.py
+++ b/modules/python/test/precornerdetect.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import cv2.cv as cv
 
 def precornerdetect(image):
diff --git a/modules/python/test/test.py b/modules/python/test/test.py
index 42dfab209e..924708c483 100755
--- a/modules/python/test/test.py
+++ b/modules/python/test/test.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import unittest
 import random
 import time
diff --git a/modules/python/test/ticket_6.py b/modules/python/test/ticket_6.py
index e6cc62f378..533027f5b9 100755
--- a/modules/python/test/ticket_6.py
+++ b/modules/python/test/ticket_6.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import urllib
 import cv2.cv as cv
 import Image
diff --git a/modules/python/test/tickets.py b/modules/python/test/tickets.py
index aa6818059a..1e756bcd82 100755
--- a/modules/python/test/tickets.py
+++ b/modules/python/test/tickets.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import unittest
 import random
 import time
diff --git a/modules/python/test/transformations.py b/modules/python/test/transformations.py
index 6d6f19e5b9..1f63bcef22 100755
--- a/modules/python/test/transformations.py
+++ b/modules/python/test/transformations.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 # transformations.py
 
diff --git a/modules/ts/misc/chart.py b/modules/ts/misc/chart.py
index 604b85048a..39a60eb2e7 100755
--- a/modules/ts/misc/chart.py
+++ b/modules/ts/misc/chart.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import testlog_parser, sys, os, xml, re
 from table_formatter import *
 from optparse import OptionParser
diff --git a/modules/ts/misc/color.py b/modules/ts/misc/color.py
index 3ce725276e..4492ed4798 100755
--- a/modules/ts/misc/color.py
+++ b/modules/ts/misc/color.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import math, os, sys
 
 webcolors = {
diff --git a/modules/ts/misc/concatlogs.py b/modules/ts/misc/concatlogs.py
index af95bac20d..afcb9cc89f 100755
--- a/modules/ts/misc/concatlogs.py
+++ b/modules/ts/misc/concatlogs.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 from optparse import OptionParser
 import glob, sys, os, re
 
diff --git a/modules/ts/misc/report.py b/modules/ts/misc/report.py
index edee85497e..6da89e512b 100755
--- a/modules/ts/misc/report.py
+++ b/modules/ts/misc/report.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import testlog_parser, sys, os, xml, re, glob
 from table_formatter import *
 from optparse import OptionParser
diff --git a/modules/ts/misc/run.py b/modules/ts/misc/run.py
index e1b275f321..de5796a95e 100755
--- a/modules/ts/misc/run.py
+++ b/modules/ts/misc/run.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import sys, os, platform, xml, re, tempfile, glob, datetime, getpass, shutil
 from optparse import OptionParser
 from subprocess import Popen, PIPE
diff --git a/modules/ts/misc/summary.py b/modules/ts/misc/summary.py
index 45b4aac13a..76c198427d 100755
--- a/modules/ts/misc/summary.py
+++ b/modules/ts/misc/summary.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import testlog_parser, sys, os, xml, glob, re
 from table_formatter import *
 from optparse import OptionParser
diff --git a/modules/ts/misc/table_formatter.py b/modules/ts/misc/table_formatter.py
index be89794f0e..598c9e924e 100755
--- a/modules/ts/misc/table_formatter.py
+++ b/modules/ts/misc/table_formatter.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import sys, re, os.path, cgi, stat
 from optparse import OptionParser
 from color import getColorizer
diff --git a/modules/ts/misc/testlog_parser.py b/modules/ts/misc/testlog_parser.py
index 7f14235d38..ce55b8b1de 100755
--- a/modules/ts/misc/testlog_parser.py
+++ b/modules/ts/misc/testlog_parser.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import sys, re, os.path
 from xml.dom.minidom import parse
 
diff --git a/samples/python/camera.py b/samples/python/camera.py
index 747bb4575c..5d1c63b047 100755
--- a/samples/python/camera.py
+++ b/samples/python/camera.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 import cv2.cv as cv
 import time
 
diff --git a/samples/python/cv20squares.py b/samples/python/cv20squares.py
index ddeeebd3f9..e472fa1973 100755
--- a/samples/python/cv20squares.py
+++ b/samples/python/cv20squares.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 """
 Find Squares in image by finding countours and filtering
 """
diff --git a/samples/python/cvutils.py b/samples/python/cvutils.py
index 6e81a3a44d..a2ef8ae325 100755
--- a/samples/python/cvutils.py
+++ b/samples/python/cvutils.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 import cv2.cv as cv
 import urllib2
 from sys import argv
diff --git a/samples/python/dmtx.py b/samples/python/dmtx.py
index 6b3a6bd180..0ff2b43da5 100755
--- a/samples/python/dmtx.py
+++ b/samples/python/dmtx.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 import cv2.cv as cv
 import time
 from pydmtx import DataMatrix
diff --git a/samples/python/peopledetect.py b/samples/python/peopledetect.py
index 35c600c961..2824299791 100755
--- a/samples/python/peopledetect.py
+++ b/samples/python/peopledetect.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python
+
 import sys
 from cv import *
 
diff --git a/samples/python2/_coverage.py b/samples/python2/_coverage.py
index 1fb8b17f0e..1d0f0418be 100755
--- a/samples/python2/_coverage.py
+++ b/samples/python2/_coverage.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Utility for measuring python opencv API coverage by samples.
 '''
diff --git a/samples/python2/_doc.py b/samples/python2/_doc.py
index 1204ae65a5..71c9faa7dd 100755
--- a/samples/python2/_doc.py
+++ b/samples/python2/_doc.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Scans current directory for *.py files and reports
 ones with missing __doc__ string.
diff --git a/samples/python2/asift.py b/samples/python2/asift.py
index 4f2b0cd40a..09894dd4c2 100755
--- a/samples/python2/asift.py
+++ b/samples/python2/asift.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Affine invariant feature-based image matching sample.
 
diff --git a/samples/python2/browse.py b/samples/python2/browse.py
index 238d2a3ec0..da2c98d1c7 100755
--- a/samples/python2/browse.py
+++ b/samples/python2/browse.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 browse.py
 =========
diff --git a/samples/python2/calibrate.py b/samples/python2/calibrate.py
index 03a2a6f7a6..54aba8aaf9 100755
--- a/samples/python2/calibrate.py
+++ b/samples/python2/calibrate.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 import os
diff --git a/samples/python2/camshift.py b/samples/python2/camshift.py
index 0554e1ecd6..43543dcfc5 100755
--- a/samples/python2/camshift.py
+++ b/samples/python2/camshift.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Camshift tracker
 ================
diff --git a/samples/python2/coherence.py b/samples/python2/coherence.py
index d3fe4daba9..082a7c6101 100755
--- a/samples/python2/coherence.py
+++ b/samples/python2/coherence.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Coherence-enhancing filtering example
 =====================================
diff --git a/samples/python2/color_histogram.py b/samples/python2/color_histogram.py
index 8e6747aac7..c27744ed5a 100755
--- a/samples/python2/color_histogram.py
+++ b/samples/python2/color_histogram.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 from time import clock
diff --git a/samples/python2/common.py b/samples/python2/common.py
index ccfbe5c722..4c6f800c44 100755
--- a/samples/python2/common.py
+++ b/samples/python2/common.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 This module contais some common routines used by other samples.
 '''
diff --git a/samples/python2/contours.py b/samples/python2/contours.py
index 13a3857d3d..daa13b2a11 100755
--- a/samples/python2/contours.py
+++ b/samples/python2/contours.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 This program illustrates the use of findContours and drawContours.
 The original image is put up along with the image of drawn contours.
diff --git a/samples/python2/deconvolution.py b/samples/python2/deconvolution.py
index 9463c4545b..5e3becc645 100755
--- a/samples/python2/deconvolution.py
+++ b/samples/python2/deconvolution.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Wiener deconvolution.
 
diff --git a/samples/python2/demo.py b/samples/python2/demo.py
index fd988bc31f..a9c1070154 100755
--- a/samples/python2/demo.py
+++ b/samples/python2/demo.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Sample-launcher application.
 '''
diff --git a/samples/python2/digits.py b/samples/python2/digits.py
index 582e5fc0ff..c84bc241cb 100755
--- a/samples/python2/digits.py
+++ b/samples/python2/digits.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 SVM and KNearest digit recognition.
 
diff --git a/samples/python2/digits_adjust.py b/samples/python2/digits_adjust.py
index d8e70f2ec7..72805d3f00 100755
--- a/samples/python2/digits_adjust.py
+++ b/samples/python2/digits_adjust.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Digit recognition adjustment.
 Grid search is used to find the best parameters for SVM and KNearest classifiers.
diff --git a/samples/python2/digits_video.py b/samples/python2/digits_video.py
index a8b486f2a8..ef62826fd1 100755
--- a/samples/python2/digits_video.py
+++ b/samples/python2/digits_video.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 import os
diff --git a/samples/python2/distrans.py b/samples/python2/distrans.py
index 1322636290..386ea8ab99 100755
--- a/samples/python2/distrans.py
+++ b/samples/python2/distrans.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Distance transform sample.
 
diff --git a/samples/python2/edge.py b/samples/python2/edge.py
index 02276f2d25..9ce3457d30 100755
--- a/samples/python2/edge.py
+++ b/samples/python2/edge.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 This sample demonstrates Canny edge detection.
 
diff --git a/samples/python2/facedetect.py b/samples/python2/facedetect.py
index 94807b82a9..27a78950a9 100755
--- a/samples/python2/facedetect.py
+++ b/samples/python2/facedetect.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 import cv2.cv as cv
diff --git a/samples/python2/feature_homography.py b/samples/python2/feature_homography.py
index aa19d45f57..4dd8ddf136 100755
--- a/samples/python2/feature_homography.py
+++ b/samples/python2/feature_homography.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Feature homography
 ==================
diff --git a/samples/python2/find_obj.py b/samples/python2/find_obj.py
index 48b9d44ea2..7a875ca4f7 100755
--- a/samples/python2/find_obj.py
+++ b/samples/python2/find_obj.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Feature-based image matching sample.
 
diff --git a/samples/python2/fitline.py b/samples/python2/fitline.py
index e4a5091f13..c19dbdc35b 100755
--- a/samples/python2/fitline.py
+++ b/samples/python2/fitline.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Robust line fitting.
 ==================
diff --git a/samples/python2/floodfill.py b/samples/python2/floodfill.py
index 540e7ad8f0..177e380255 100755
--- a/samples/python2/floodfill.py
+++ b/samples/python2/floodfill.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Floodfill sample.
 
diff --git a/samples/python2/gabor_threads.py b/samples/python2/gabor_threads.py
index 962a50189a..9582bdb04f 100755
--- a/samples/python2/gabor_threads.py
+++ b/samples/python2/gabor_threads.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 gabor_threads.py
 =========
diff --git a/samples/python2/gaussian_mix.py b/samples/python2/gaussian_mix.py
index 63ee3adece..de714fa353 100755
--- a/samples/python2/gaussian_mix.py
+++ b/samples/python2/gaussian_mix.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 from numpy import random
 import cv2
diff --git a/samples/python2/hist.py b/samples/python2/hist.py
index d7938958fc..ea950c8326 100755
--- a/samples/python2/hist.py
+++ b/samples/python2/hist.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 ''' This is a sample for histogram plotting for RGB images and grayscale images for better understanding of colour distribution
 
 Benefit : Learn how to draw histogram of images
diff --git a/samples/python2/inpaint.py b/samples/python2/inpaint.py
index 0070f55681..d2b8c849a7 100755
--- a/samples/python2/inpaint.py
+++ b/samples/python2/inpaint.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Inpainting sample.
 
diff --git a/samples/python2/kmeans.py b/samples/python2/kmeans.py
index 3b55830508..4418a46792 100755
--- a/samples/python2/kmeans.py
+++ b/samples/python2/kmeans.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 K-means clusterization sample.
 Usage:
diff --git a/samples/python2/lappyr.py b/samples/python2/lappyr.py
index e1951ed63a..232ec54b92 100755
--- a/samples/python2/lappyr.py
+++ b/samples/python2/lappyr.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 ''' An example of Laplacian Pyramid construction and merging.
 
 Level : Intermediate
diff --git a/samples/python2/letter_recog.py b/samples/python2/letter_recog.py
index 282b300d89..73eeff3bb7 100755
--- a/samples/python2/letter_recog.py
+++ b/samples/python2/letter_recog.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 The sample demonstrates how to train Random Trees classifier
 (or Boosting classifier, or MLP, or Knearest, or Support Vector Machines) using the provided dataset.
diff --git a/samples/python2/lk_homography.py b/samples/python2/lk_homography.py
index 9e6d8a9e80..9996764c6f 100755
--- a/samples/python2/lk_homography.py
+++ b/samples/python2/lk_homography.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Lucas-Kanade homography tracker
 ===============================
diff --git a/samples/python2/lk_track.py b/samples/python2/lk_track.py
index ea8b25d1b8..f0d0439622 100755
--- a/samples/python2/lk_track.py
+++ b/samples/python2/lk_track.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Lucas-Kanade tracker
 ====================
diff --git a/samples/python2/morphology.py b/samples/python2/morphology.py
index 2c81cd81e0..0980981380 100755
--- a/samples/python2/morphology.py
+++ b/samples/python2/morphology.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Morphology operations.
 
diff --git a/samples/python2/mosse.py b/samples/python2/mosse.py
index 1d5eb29389..aecb423452 100755
--- a/samples/python2/mosse.py
+++ b/samples/python2/mosse.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 MOSSE tracking sample
 
diff --git a/samples/python2/motempl.py b/samples/python2/motempl.py
index 08f3100643..4f78ebad57 100755
--- a/samples/python2/motempl.py
+++ b/samples/python2/motempl.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 import video
diff --git a/samples/python2/mouse_and_match.py b/samples/python2/mouse_and_match.py
index b979445c9e..a9fa882adc 100755
--- a/samples/python2/mouse_and_match.py
+++ b/samples/python2/mouse_and_match.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 #!/usr/bin/env python
 '''
 mouse_and_match.py [-i path | --input path: default ./]
diff --git a/samples/python2/mser.py b/samples/python2/mser.py
index 88773534ab..73e0a4f8da 100755
--- a/samples/python2/mser.py
+++ b/samples/python2/mser.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 MSER detector demo
 ==================
diff --git a/samples/python2/opt_flow.py b/samples/python2/opt_flow.py
index a70046a06e..d0bc5c5c11 100755
--- a/samples/python2/opt_flow.py
+++ b/samples/python2/opt_flow.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 import video
diff --git a/samples/python2/peopledetect.py b/samples/python2/peopledetect.py
index 4cd7a8efd6..f4bd46702f 100755
--- a/samples/python2/peopledetect.py
+++ b/samples/python2/peopledetect.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 import numpy as np
 import cv2
 
diff --git a/samples/python2/plane_ar.py b/samples/python2/plane_ar.py
index 45e35603d3..dc2d5d584f 100755
--- a/samples/python2/plane_ar.py
+++ b/samples/python2/plane_ar.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Planar augmented reality
 ==================
diff --git a/samples/python2/plane_tracker.py b/samples/python2/plane_tracker.py
index d588b94cde..189f50b362 100755
--- a/samples/python2/plane_tracker.py
+++ b/samples/python2/plane_tracker.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Multitarget planar tracking
 ==================
diff --git a/samples/python2/squares.py b/samples/python2/squares.py
index 7842bb18c7..a247c35627 100755
--- a/samples/python2/squares.py
+++ b/samples/python2/squares.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Simple "Square Detector" program.
 
diff --git a/samples/python2/stereo_match.py b/samples/python2/stereo_match.py
index ef562225d6..0e46c26617 100755
--- a/samples/python2/stereo_match.py
+++ b/samples/python2/stereo_match.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Simple example of stereo image matching and point cloud generation.
 
diff --git a/samples/python2/texture_flow.py b/samples/python2/texture_flow.py
index 5b095e63ad..66eb58fe69 100755
--- a/samples/python2/texture_flow.py
+++ b/samples/python2/texture_flow.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Texture flow direction estimation.
 
diff --git a/samples/python2/turing.py b/samples/python2/turing.py
index 679bf9926a..101f22c045 100755
--- a/samples/python2/turing.py
+++ b/samples/python2/turing.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Multiscale Turing Patterns generator
 ====================================
diff --git a/samples/python2/video.py b/samples/python2/video.py
index c4168f6b51..2cdcb2a600 100755
--- a/samples/python2/video.py
+++ b/samples/python2/video.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Video capture sample.
 
diff --git a/samples/python2/video_dmtx.py b/samples/python2/video_dmtx.py
index 98cdd85652..1ed06c4adc 100755
--- a/samples/python2/video_dmtx.py
+++ b/samples/python2/video_dmtx.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Data matrix detector sample.
 Usage:
diff --git a/samples/python2/video_threaded.py b/samples/python2/video_threaded.py
index 7498d83606..6fce334183 100755
--- a/samples/python2/video_threaded.py
+++ b/samples/python2/video_threaded.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Multithreaded video processing sample.
 Usage:
diff --git a/samples/python2/watershed.py b/samples/python2/watershed.py
index 711f940d0e..d4ab22ad59 100755
--- a/samples/python2/watershed.py
+++ b/samples/python2/watershed.py
@@ -1,3 +1,5 @@
+#/usr/bin/env python
+
 '''
 Watershed segmentation
 =========