Added Liear Search

Author: OmkarPathak

pygorithms/__init__.py renamed to pygorithm/__init__.py

@@ -0,0 +1,29 @@
+# Author: OMKAR PATHAK
+# Created On: 1st August 2017
+
+# Best O(1); Average O(n); Worst O(n)
+
+# sequential search algorithm
+def search(List, target):
+    '''This function returns the position of the target if found else returns -1'''
+    position = 0
+    while position < len(List):
+        if target == List[position]:
+            return position
+        position += 1
+    return -1
+
+# time complexities
+def bestcase_complexity():
+    return 'O(1)'
+
+def averagecase_complexity():
+    return 'O(n)'
+
+def worstcase_complexity():
+    return 'O(n)'
+
+# easily retrieve the source code of the sort function
+def get_code():
+    import inspect
+    return inspect.getsource(search)