Python search a file in file system

Author: OmkarPathak

Programs/P77_FileSearching.py

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+# Author: OMKAR PATHAK
+
+# This program will help us implement concepts such as binary searching, operating system.
+# P.S: Dont run this on root. That is dont give the DIRECTORY path as root else the program might
+# consume all your resources and your system might get crashed
+
+import os
+from pathlib import Path
+
+DIRECTORY = '/home/omkarpathak/Desktop'
+
+# List all the directories in the DIRECTORY
+dirs = [name for name in os.listdir(DIRECTORY) if os.path.isdir(os.path.join(DIRECTORY, name))]
+
+# List all the files in the DIRECTORY
+# files = [name for name in os.listdir(DIRECTORY) if os.path.isfile(os.path.join(DIRECTORY, name))]
+files = []
+
+for root, dirs, files in os.walk(DIRECTORY):
+    for File in files:
+        files.append(root + File)
+
+dirs.sort()
+files.sort()
+
+def binarySearch(target, List):
+    '''This function performs a binary search on a sorted list and returns the position if successful else returns -1'''
+    left = 0 #First position of the list
+    right = len(List) - 1 #Last position of the list
+    global iterations
+    iterations = 0
+
+    while left <= right: #U can also write while True condition
+        iterations += 1
+        mid = (left + right) // 2
+        if target == List[mid]:
+            return mid, List[mid]
+        elif target < List[mid]:
+            right =  mid - 1
+        else:
+            left = mid + 1
+    return -1
+
+print(dirs)
+print(files)
+
+try:
+    result, filePath = binarySearch('server.py', files)
+    print(os.path.abspath(filePath))
+except:
+    print('File not found')