added python code for the wc exercise

Author: Luke-Manyamazi

implement-shell-tools/wc/wc.py

@@ -0,0 +1,37 @@
+import argparse
+
+def wc(path, count_lines, count_words, count_bytes):
+    try:
+        with open(path, 'r') as f:
+            content = f.read()
+        lines = content.splitlines()
+        words = content.split()
+        bytes_ = len(content.encode('utf-8'))
+
+        parts = []
+        if count_lines: parts.append(str(len(lines)))
+        if count_words: parts.append(str(len(words)))
+        if count_bytes: parts.append(str(bytes_))
+
+        if not parts:
+            parts = [str(len(lines)), str(len(words)), str(bytes_)]
+        print(' '.join(parts), path)
+
+    except FileNotFoundError:
+        print(f"wc: {path}: No such file or directory")
+    except IsADirectoryError:
+        print(f"wc: {path}: Is a directory")
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-l', action='store_true', help='Count lines')
+    parser.add_argument('-w', action='store_true', help='Count words')
+    parser.add_argument('-c', action='store_true', help='Count bytes')
+    parser.add_argument('paths', nargs='+', help='Files to count')
+    args = parser.parse_args()
+
+    for path in args.paths:
+        wc(path, args.l, args.w, args.c)
+
+if __name__ == "__main__":
+    main()