diff --git a/doc/check_docs.py b/doc/check_docs.py
index 2d8799341db8c8f1aefaf25e9a7e4866afcf87c4..8ab5fced4dee8a2aa71a131943e6d652bcdc22c5 100755
--- a/doc/check_docs.py
+++ b/doc/check_docs.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import sys, glob
 
diff --git a/doc/check_docs2.py b/doc/check_docs2.py
index 8092c68011988ec5a1aa7680e1239f6cfd99cd9c..ca99a50bfb38a6248b6f16206c4a83e75568774a 100755
--- a/doc/check_docs2.py
+++ b/doc/check_docs2.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import os, sys, fnmatch, re
 
diff --git a/doc/conf.py b/doc/conf.py
index 7b9b02ecf4c7e79b6c14dc55ac7d6195986121f5..4c7a15c891157c19ff173daa064357e3f02c41f0 100755
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 # -*- coding: utf-8 -*-
 #
diff --git a/doc/ocv.py b/doc/ocv.py
index 4ff8a6deb5ffbe0871bc2a5a68cf7caaf9c0da57..8fcef4040b9e664f6bce7f321804ebf4f99457a8 100755
--- a/doc/ocv.py
+++ b/doc/ocv.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 352c46cb561eaea2af34906de01cbc1475b06e0e..ff762fc8f38721e45bc871bffbeb6354d271e97c 100755
--- a/doc/patch_refman_latex.py
+++ b/doc/patch_refman_latex.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import sys
 
diff --git a/doc/pattern_tools/gen_pattern.py b/doc/pattern_tools/gen_pattern.py
index 45b45af2db6f5965194f346c5e6630eb4a2417b0..3643b6d3b27daa9818aab253baf966fd17afd2fb 100755
--- a/doc/pattern_tools/gen_pattern.py
+++ b/doc/pattern_tools/gen_pattern.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 """gen_pattern.py
 To run:
diff --git a/doc/pattern_tools/svgfig.py b/doc/pattern_tools/svgfig.py
index bf182a8b09c92e2a185b89d8f503119805f1a9a2..86afa59133e680ada0f667bdafa4e0238785ecea 100755
--- a/doc/pattern_tools/svgfig.py
+++ b/doc/pattern_tools/svgfig.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 # svgfig.py copyright (C) 2008 Jim Pivarski <jpivarski@gmail.com>
 #
diff --git a/doc/reformat.py b/doc/reformat.py
index 00e4aae9e03b5c03c66dbccf8be188bc01bcc3e4..017efebb387f3974bfa715d880508b4002cc2ca4 100755
--- a/doc/reformat.py
+++ b/doc/reformat.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import os, sys, re
 
diff --git a/modules/contrib/doc/facerec/src/create_csv.py b/modules/contrib/doc/facerec/src/create_csv.py
index 71d773c017980db1cd8d1a1a014f4193a741a035..c4de778f9872f7022e51bfd5dd9f562ca664ed61 100755
--- a/modules/contrib/doc/facerec/src/create_csv.py
+++ b/modules/contrib/doc/facerec/src/create_csv.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 e8cc3e8417cc621507336ba95a5cc5d42351612a..08743fb136635f67a065b9825de5fb6beea307d8 100755
--- a/modules/gpu/misc/mark_nvidia.py
+++ b/modules/gpu/misc/mark_nvidia.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import sys, re
 
diff --git a/modules/java/check-tests.py b/modules/java/check-tests.py
index 4cb80ff724a9cafe7e4e48046df013c66c446067..c4d34f61e94e5db3303d6d826440e1ce5e4ecaf9 100755
--- a/modules/java/check-tests.py
+++ b/modules/java/check-tests.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import sys, os, re
 
diff --git a/modules/java/generator/gen_java.py b/modules/java/generator/gen_java.py
index c0da34fe095135ebaec298331660b71256c3bd87..1da5cb68c6038a6e956eb6e71c65f2e5947021d7 100755
--- a/modules/java/generator/gen_java.py
+++ b/modules/java/generator/gen_java.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 71372d3a2c4fef470cb005fb7b2cd9620a916111..dfa591a95932b160dc1f84af66f0ef585ffc0f9e 100755
--- a/modules/java/generator/gen_javadoc.py
+++ b/modules/java/generator/gen_javadoc.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 33dae447d56aefd8f0b87ccb5f07f11a8a0b5515..d32323a7841096c0dd0161355d97f99ad1da9672 100755
--- a/modules/java/generator/rst_parser.py
+++ b/modules/java/generator/rst_parser.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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", "superres"]
diff --git a/modules/python/src2/cv.py b/modules/python/src2/cv.py
old mode 100755
new mode 100644
index 4238d05f7ab440cf13bbad9ae979d4178f9f6141..2d4daf08b04f73de7775ae866a0598a15e7e1819
--- a/modules/python/src2/cv.py
+++ b/modules/python/src2/cv.py
@@ -1,3 +1 @@
-#/usr/bin/env python
-
 from cv2.cv import *
diff --git a/modules/python/src2/gen.py b/modules/python/src2/gen.py
index 65cafc990040f3fa720e9e311454b5c25067974d..40879e569f139c794b8b81ec7ed2ae61f2dd777e 100755
--- a/modules/python/src2/gen.py
+++ b/modules/python/src2/gen.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 5061b1147958e617fe714e6dac3646d8b70984ab..69a0d369d7a4d69d74bc88bf55eb8a29fc4d4616 100755
--- a/modules/python/src2/gen2.py
+++ b/modules/python/src2/gen2.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 4c81b04ff71c5aca679be41d38dcda85020d4ce3..14da8873c33bb562c5df71a3e1f30ddf99aa94f4 100755
--- a/modules/python/src2/hdr_parser.py
+++ b/modules/python/src2/hdr_parser.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import os, sys, re, string
 
diff --git a/modules/python/test/calchist.py b/modules/python/test/calchist.py
index 0a52258b20ebe42d96124e07c9d5cdb5f509fc7e..287e22f91e020b90e97c50fd672fa99a9a09682d 100755
--- a/modules/python/test/calchist.py
+++ b/modules/python/test/calchist.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 # Calculating and displaying 2D Hue-Saturation histogram of a color image
 import sys
diff --git a/modules/python/test/camera_calibration.py b/modules/python/test/camera_calibration.py
index 488dd15c62cefee533168be1c9a303f6dfcb0f40..8ffc5b1cd90796fecc0b37dbbddaddff32494313 100755
--- a/modules/python/test/camera_calibration.py
+++ b/modules/python/test/camera_calibration.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import sys
 import math
diff --git a/modules/python/test/findstereocorrespondence.py b/modules/python/test/findstereocorrespondence.py
index 8f11738cceeea26b278ce214d93f18382e1ddcd9..40a9603beb6d3e38a1c3b3d7167dd18c5c1304e1 100755
--- a/modules/python/test/findstereocorrespondence.py
+++ b/modules/python/test/findstereocorrespondence.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 62907772ab8707d899c050506204878c40d8901f..5ccd5b46c15f77256aef97d963437a41f8aee93c 100755
--- a/modules/python/test/goodfeatures.py
+++ b/modules/python/test/goodfeatures.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 dde5608951646804a92c5b59bada693aa137f199..dbd6040a5ab924499fa0c1c276ef78e96b9b36ef 100755
--- a/modules/python/test/leak1.py
+++ b/modules/python/test/leak1.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import cv2.cv as cv
 import numpy as np
diff --git a/modules/python/test/leak2.py b/modules/python/test/leak2.py
index af1cb0556c5449178ea9cc7f96faec495fd28f5a..518226448a53127c554fe78dfb7ebfda54428f73 100755
--- a/modules/python/test/leak2.py
+++ b/modules/python/test/leak2.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import cv2.cv as cv
 import numpy as np
diff --git a/modules/python/test/leak3.py b/modules/python/test/leak3.py
index f72afbbf086d4694a8eb774b2b142a778277be1b..d763c4044d10b29201c9fa3ac25fd4e6b0e81805 100755
--- a/modules/python/test/leak3.py
+++ b/modules/python/test/leak3.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import cv2.cv as cv
 import math
diff --git a/modules/python/test/leak4.py b/modules/python/test/leak4.py
index dcfc5cfdc90571ec117ea598ae8903c91d9e1157..9e5864092b6fb2aceb46168029b18c42f97e4891 100755
--- a/modules/python/test/leak4.py
+++ b/modules/python/test/leak4.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import cv2.cv as cv
 import math
diff --git a/modules/python/test/precornerdetect.py b/modules/python/test/precornerdetect.py
index 29a6ca1ecdea22f7f55397c2418e96c61e978c9d..97aa906d4a31ada288c09a952a915675f4ce06af 100755
--- a/modules/python/test/precornerdetect.py
+++ b/modules/python/test/precornerdetect.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import cv2.cv as cv
 
diff --git a/modules/python/test/test.py b/modules/python/test/test.py
index 7c511e4ef797fe138c581b480ca144ac818f27ea..48138cbdacf68f4afc6b027bdb5ece6649262eb2 100755
--- a/modules/python/test/test.py
+++ b/modules/python/test/test.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import unittest
 import random
diff --git a/modules/python/test/test2.py b/modules/python/test/test2.py
index 703d2ed74214e466b22106de064f790a6849aa71..a96be4f6bbd8bc1d94e1e30a70f94bd8c66c92bf 100644
--- a/modules/python/test/test2.py
+++ b/modules/python/test/test2.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import unittest
 import random
diff --git a/modules/python/test/ticket_6.py b/modules/python/test/ticket_6.py
index 533027f5b9e39c050a87701684df9dc4fb691a3e..7249ff2c75df4a2ed85ab032ff081e247c9da73f 100755
--- a/modules/python/test/ticket_6.py
+++ b/modules/python/test/ticket_6.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import urllib
 import cv2.cv as cv
diff --git a/modules/python/test/tickets.py b/modules/python/test/tickets.py
index 1e756bcd8283cefff83f938c4b50cc1cc94708b3..de51e7aa16571d34a9c9ac96bbdc616da0f6650b 100755
--- a/modules/python/test/tickets.py
+++ b/modules/python/test/tickets.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import unittest
 import random
diff --git a/modules/python/test/transformations.py b/modules/python/test/transformations.py
index 1f63bcef22fc700e27a82629f6534136f46461b5..5dce6b049785038ca365cbcec18cbfc73bcfbdd1 100755
--- a/modules/python/test/transformations.py
+++ b/modules/python/test/transformations.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 # -*- coding: utf-8 -*-
 # transformations.py
diff --git a/modules/ts/misc/testlog_parser.py b/modules/ts/misc/testlog_parser.py
index f61b47bba9d76518f246afc338a86acf87aadb81..7ae6aa59804722880ac73abaa633923fd665c808 100755
--- a/modules/ts/misc/testlog_parser.py
+++ b/modules/ts/misc/testlog_parser.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import sys, re, os.path
 from xml.dom.minidom import parse
diff --git a/samples/python2/_coverage.py b/samples/python2/_coverage.py
index 1d0f0418be75cec7135a8743107808ef3db0ba53..80edffb99781c0a1f0ea2b948e83e1e19cc54490 100755
--- a/samples/python2/_coverage.py
+++ b/samples/python2/_coverage.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 71c9faa7dd86af35e28ff6e988a66cad7732e7e9..fe2b6f32be1501311d6a018c8d8fff96cd5f5496 100755
--- a/samples/python2/_doc.py
+++ b/samples/python2/_doc.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Scans current directory for *.py files and reports
diff --git a/samples/python2/asift.py b/samples/python2/asift.py
index 09894dd4c24b8987d0be71636059131aa2b52511..61fca80fbb282a7353c0a18888577c1029d53405 100755
--- a/samples/python2/asift.py
+++ b/samples/python2/asift.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Affine invariant feature-based image matching sample.
diff --git a/samples/python2/browse.py b/samples/python2/browse.py
index da2c98d1c7fac6f1675d59f064e3ab889f77418a..1ea31c0b647df6e626f79d1732acc3cadc69af68 100755
--- a/samples/python2/browse.py
+++ b/samples/python2/browse.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 browse.py
diff --git a/samples/python2/calibrate.py b/samples/python2/calibrate.py
index 54aba8aaf9fcf5fab93c8c3e5295c9712ccef1a2..11ab813f5903a3740118c11bb0d1d89b99b3d1bb 100755
--- a/samples/python2/calibrate.py
+++ b/samples/python2/calibrate.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 import cv2
diff --git a/samples/python2/camshift.py b/samples/python2/camshift.py
index 43543dcfc52e422e6643bc36565424f6d6ec498a..4ce005b8786d4c76069709a2c67267c7f94d779e 100755
--- a/samples/python2/camshift.py
+++ b/samples/python2/camshift.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Camshift tracker
diff --git a/samples/python2/coherence.py b/samples/python2/coherence.py
index 082a7c6101606c91534829127c4d430a1743ba50..d2de154c087ca39d92fdb67f9e6bbeea157a2147 100755
--- a/samples/python2/coherence.py
+++ b/samples/python2/coherence.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Coherence-enhancing filtering example
diff --git a/samples/python2/color_histogram.py b/samples/python2/color_histogram.py
index c27744ed5a074af8977b7b8e57a8a30af707ac60..ebb4b642d58239087d0d446f85d157dfe417aca1 100755
--- a/samples/python2/color_histogram.py
+++ b/samples/python2/color_histogram.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 import cv2
diff --git a/samples/python2/common.py b/samples/python2/common.py
index 4c6f800c44be376eb8c69a5264295f009f5f27af..f3c41018a1d434969d7cede37cb7864a4d7d0a5e 100755
--- a/samples/python2/common.py
+++ b/samples/python2/common.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 daa13b2a11f712f9ff668688e4b233cef9276494..f8cc12c0c9a7939e5a1729afeb2e73e056e27147 100755
--- a/samples/python2/contours.py
+++ b/samples/python2/contours.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 This program illustrates the use of findContours and drawContours.
diff --git a/samples/python2/deconvolution.py b/samples/python2/deconvolution.py
index 5e3becc64579db7871ee088949f3825911f035c5..e9c4f44d1d064ef904f2eea43b89725ff1df4c7a 100755
--- a/samples/python2/deconvolution.py
+++ b/samples/python2/deconvolution.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Wiener deconvolution.
diff --git a/samples/python2/demo.py b/samples/python2/demo.py
index a9c10701542c5d9c163a2f0beb344e771776c1a0..068d1eef6d3f96fb2be17bb62803c109527aae9a 100755
--- a/samples/python2/demo.py
+++ b/samples/python2/demo.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Sample-launcher application.
diff --git a/samples/python2/dft.py b/samples/python2/dft.py
index 32a91e3b583b078f4dbf1a0847778a3fa34c085f..73df84dc9e03303eb94cec5318889ae6db7814e4 100644
--- a/samples/python2/dft.py
+++ b/samples/python2/dft.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import cv2
 import numpy as np
diff --git a/samples/python2/digits.py b/samples/python2/digits.py
index c84bc241cb0ec0fc7e45e93d47719040fafa6b95..e68ec0461b2593f5ef2809e9327dbdd832ee22c2 100755
--- a/samples/python2/digits.py
+++ b/samples/python2/digits.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 SVM and KNearest digit recognition.
diff --git a/samples/python2/digits_adjust.py b/samples/python2/digits_adjust.py
index 72805d3f00a5be160eae95207bdd51f183d37492..31473101049a35340ddf0e32708b95d3cb23f04d 100755
--- a/samples/python2/digits_adjust.py
+++ b/samples/python2/digits_adjust.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Digit recognition adjustment.
diff --git a/samples/python2/digits_video.py b/samples/python2/digits_video.py
index ef62826fd13a1d684a75ed4f67294dcc3a77140e..473d54560e701bd6583a2cf4bd6808b79d98cd80 100755
--- a/samples/python2/digits_video.py
+++ b/samples/python2/digits_video.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 import cv2
diff --git a/samples/python2/distrans.py b/samples/python2/distrans.py
index 386ea8ab99ce876b47e63b46a2bbaf861aa8ed6c..fc2e3d1772cb68d29ce02460792bc209d60f933a 100755
--- a/samples/python2/distrans.py
+++ b/samples/python2/distrans.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Distance transform sample.
diff --git a/samples/python2/edge.py b/samples/python2/edge.py
index 9ce3457d3047b0f194e43a2034eb31a91f6fc46e..4abc94255dd38b11324fe1c02d03de4a4076fed6 100755
--- a/samples/python2/edge.py
+++ b/samples/python2/edge.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 This sample demonstrates Canny edge detection.
diff --git a/samples/python2/facedetect.py b/samples/python2/facedetect.py
index 27a78950a93ad168d52be8295c886bd82e92f212..5154711d2057aea57a81c44b27c3ab904c309870 100755
--- a/samples/python2/facedetect.py
+++ b/samples/python2/facedetect.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 import cv2
diff --git a/samples/python2/feature_homography.py b/samples/python2/feature_homography.py
index 4dd8ddf1368c99f479095745afcb3d66cb341b2c..a9e0d321832d9b2ce4278be9fa0783dfa3cdd562 100755
--- a/samples/python2/feature_homography.py
+++ b/samples/python2/feature_homography.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Feature homography
diff --git a/samples/python2/find_obj.py b/samples/python2/find_obj.py
index 7a875ca4f77cbc2cd1fafc73dbea0ee3ede5e849..66c971dd23e3cb8094553edc4a1f94ab12012685 100755
--- a/samples/python2/find_obj.py
+++ b/samples/python2/find_obj.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Feature-based image matching sample.
diff --git a/samples/python2/fitline.py b/samples/python2/fitline.py
index c19dbdc35bbbe949e03b177176eace0f45c08b44..5960f2c85636af370f79efe336edeb24b24d4cd8 100755
--- a/samples/python2/fitline.py
+++ b/samples/python2/fitline.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Robust line fitting.
diff --git a/samples/python2/floodfill.py b/samples/python2/floodfill.py
index 177e380255c7b755170391cc30dcc4677f6864a5..33978c158969e9bb7d7d46f72542eee91385b303 100755
--- a/samples/python2/floodfill.py
+++ b/samples/python2/floodfill.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Floodfill sample.
diff --git a/samples/python2/gabor_threads.py b/samples/python2/gabor_threads.py
index 9582bdb04fe8bcf9bd87c8e36ee310ff02d88329..7b8766eb55a7299ed84fa4f8fccf7108b20cfa3b 100755
--- a/samples/python2/gabor_threads.py
+++ b/samples/python2/gabor_threads.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 gabor_threads.py
diff --git a/samples/python2/gaussian_mix.py b/samples/python2/gaussian_mix.py
index de714fa35335b524d7b2ea8ce3be88ff12f23dda..704d30cf6b9a5f9461f9f76d81a9df3f59a50342 100755
--- a/samples/python2/gaussian_mix.py
+++ b/samples/python2/gaussian_mix.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 from numpy import random
diff --git a/samples/python2/hist.py b/samples/python2/hist.py
index 47fdb56bb4cb8a9420876df6445a9eb512556a8e..1f32b0e079c5b487134f9c587b576eedc0d15e8d 100755
--- a/samples/python2/hist.py
+++ b/samples/python2/hist.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 ''' This is a sample for histogram plotting for RGB images and grayscale images for better understanding of colour distribution
 
diff --git a/samples/python2/inpaint.py b/samples/python2/inpaint.py
index d2b8c849a7e0854914813c02c7b4ec3794952d73..8e91406bcd1b12d509bee48950ca03bd3d9cb67b 100755
--- a/samples/python2/inpaint.py
+++ b/samples/python2/inpaint.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Inpainting sample.
diff --git a/samples/python2/kmeans.py b/samples/python2/kmeans.py
index 4418a46792174103f003c79d8c36a09c68c10a9c..0656fa7ad08a10de369998057ce07334cda7cb0d 100755
--- a/samples/python2/kmeans.py
+++ b/samples/python2/kmeans.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 K-means clusterization sample.
diff --git a/samples/python2/lappyr.py b/samples/python2/lappyr.py
index 232ec54b9210e75920be48287bea628aabfe9aa8..550136262b0418101cf4a10d905feafb70ac41b6 100755
--- a/samples/python2/lappyr.py
+++ b/samples/python2/lappyr.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 ''' An example of Laplacian Pyramid construction and merging.
 
diff --git a/samples/python2/letter_recog.py b/samples/python2/letter_recog.py
index 73eeff3bb7f49515bc4eb3d8ee83ca5c1e6a4e17..ef8c7229c923c61358a8935682609d69861a485a 100755
--- a/samples/python2/letter_recog.py
+++ b/samples/python2/letter_recog.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 The sample demonstrates how to train Random Trees classifier
diff --git a/samples/python2/lk_homography.py b/samples/python2/lk_homography.py
index 9996764c6ffb55c547cde1165be6c50cbfcb14e1..5f63897551bb2cf45b8be47538b9bee84e131b09 100755
--- a/samples/python2/lk_homography.py
+++ b/samples/python2/lk_homography.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Lucas-Kanade homography tracker
diff --git a/samples/python2/lk_track.py b/samples/python2/lk_track.py
index f0d04396226aa56698db25f5bf72c63edf50c41d..794cb10035bf1d487eab3f1419c63acb685d281f 100755
--- a/samples/python2/lk_track.py
+++ b/samples/python2/lk_track.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Lucas-Kanade tracker
diff --git a/samples/python2/morphology.py b/samples/python2/morphology.py
index 0980981380fa343851524ab7a2083d35614a365b..99e63444e7fb4655cf75aaa4c107f6a3ba863284 100755
--- a/samples/python2/morphology.py
+++ b/samples/python2/morphology.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Morphology operations.
diff --git a/samples/python2/mosse.py b/samples/python2/mosse.py
index aecb423452ebf4cb031adc142f0d9416dedc3d78..671b33fc7df86a033a4593602483086cd6eb8be0 100755
--- a/samples/python2/mosse.py
+++ b/samples/python2/mosse.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 MOSSE tracking sample
diff --git a/samples/python2/motempl.py b/samples/python2/motempl.py
index 4f78ebad5785dc1f0747c04c97c04d5998856808..3ded78e4bffc5deff9e600a1b7efc3847a99cf16 100755
--- a/samples/python2/motempl.py
+++ b/samples/python2/motempl.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 import cv2
diff --git a/samples/python2/mouse_and_match.py b/samples/python2/mouse_and_match.py
index a9fa882adc481014120a5ddda59b89832b2de6ed..b55b0026678e4363ed4102bdcfe9b6b4b5633bd1 100755
--- a/samples/python2/mouse_and_match.py
+++ b/samples/python2/mouse_and_match.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 #!/usr/bin/env python
 '''
diff --git a/samples/python2/mser.py b/samples/python2/mser.py
index 73e0a4f8da4b5d3845dcf87062523c9247d8d87f..d640ea4b8ffb911be42918da0af8677bef37b2ca 100755
--- a/samples/python2/mser.py
+++ b/samples/python2/mser.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 MSER detector demo
diff --git a/samples/python2/opt_flow.py b/samples/python2/opt_flow.py
index d0bc5c5c11e3945fb279aaa82727bad45c33d569..b476b0142ec515cd5929c0ce4d4ff3a112d593e8 100755
--- a/samples/python2/opt_flow.py
+++ b/samples/python2/opt_flow.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 import numpy as np
 import cv2
diff --git a/samples/python2/peopledetect.py b/samples/python2/peopledetect.py
index f4bd46702f2e2e9a4650f61b24b178a9d541016c..f8d5e6fd0ffd1a1a21df6b7e66671ab01ea5a83c 100755
--- a/samples/python2/peopledetect.py
+++ b/samples/python2/peopledetect.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 dc2d5d584f9d5ff85f1e666bf4300e5454c943ec..4b12dfe9d93a053b506b4beb44eb723365a3d57a 100755
--- a/samples/python2/plane_ar.py
+++ b/samples/python2/plane_ar.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Planar augmented reality
diff --git a/samples/python2/plane_tracker.py b/samples/python2/plane_tracker.py
index 189f50b362e8503210bb49815a8f61eddde19110..4b7d3959c7d7bf3419b8c28d3b0b74731d0ce4f1 100755
--- a/samples/python2/plane_tracker.py
+++ b/samples/python2/plane_tracker.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Multitarget planar tracking
diff --git a/samples/python2/squares.py b/samples/python2/squares.py
index a247c356276291f2729886c307890f1ab595e902..36676b4546afa13a4ffd64852b9e6f074d67790f 100755
--- a/samples/python2/squares.py
+++ b/samples/python2/squares.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Simple "Square Detector" program.
diff --git a/samples/python2/stereo_match.py b/samples/python2/stereo_match.py
index 0e46c266172eeedc32114fdc24b827c2e66ba7bd..0803a3d12bde85d2c02f48fe98a4e73efafa7304 100755
--- a/samples/python2/stereo_match.py
+++ b/samples/python2/stereo_match.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/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 66eb58fe699c0c12d3a32d16857318dafe83317d..8b20faf4c9cdb4e05263601f2f8efed24896db3c 100755
--- a/samples/python2/texture_flow.py
+++ b/samples/python2/texture_flow.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Texture flow direction estimation.
diff --git a/samples/python2/turing.py b/samples/python2/turing.py
index 101f22c045327633f7448f414842af0d8826e4d3..e847f014c121d8937e829698c7d32388a5552e42 100755
--- a/samples/python2/turing.py
+++ b/samples/python2/turing.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Multiscale Turing Patterns generator
diff --git a/samples/python2/video.py b/samples/python2/video.py
index 2cdcb2a60082a6287a766a464f577146abf02436..7e90ded038c70baa1aa78c8ae8c55a5e877a2f40 100755
--- a/samples/python2/video.py
+++ b/samples/python2/video.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Video capture sample.
diff --git a/samples/python2/video_dmtx.py b/samples/python2/video_dmtx.py
index 1ed06c4adc8c024b3560bec97f49d862b6f4b7bc..bcb578574513c336685cf58644e58afac77faf2c 100755
--- a/samples/python2/video_dmtx.py
+++ b/samples/python2/video_dmtx.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Data matrix detector sample.
diff --git a/samples/python2/video_threaded.py b/samples/python2/video_threaded.py
index 6fce334183d0d2bf111d45a5aab5c5ebd1b480b4..7bead033c5c804f4ffe57f082c34972881474b87 100755
--- a/samples/python2/video_threaded.py
+++ b/samples/python2/video_threaded.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Multithreaded video processing sample.
diff --git a/samples/python2/watershed.py b/samples/python2/watershed.py
index d4ab22ad59cbcabc14d55aa8ab8c7c99a24e1871..9740e38895dbcc3c67a2336fa36a50bd15be06e9 100755
--- a/samples/python2/watershed.py
+++ b/samples/python2/watershed.py
@@ -1,4 +1,4 @@
-#/usr/bin/env python
+#!/usr/bin/env python
 
 '''
 Watershed segmentation