Add python grep script

Author: duboviy

pygrep.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+import argparse
+import os
+import fnmatch
+
+
+def file_generator(pattern):
+    for root, dirs, files in os.walk("."):
+        for item in fnmatch.filter(files, pattern):
+            yield item
+
+
+def entries_generator(item, keyword):
+    with open(item, 'r') as f:
+        for number, line in enumerate(f, 1):
+            if str(keyword) in line:
+                yield (number, line)
+
+
+def grep(pattern, keyword):
+    for item in file_generator(pattern):
+        for number, line in entries_generator(item, keyword):
+            print(
+                os.path.join('', item) + ":",
+                number,
+                line.replace(keyword, '\x1b[31m %s\x1b[0m' % keyword)
+            )
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('pattern')
+    parser.add_argument('keyword')
+    args = parser.parse_args()
+    grep(args.pattern, args.keyword)