Added os module related methods

qtkhajacloud · qtkhajacloud · commit 25862c3dbbf4 · 2021-09-21T16:38:16.000+05:30
diff --git a/Sep21/EffectivePython/StandardLibrary/osandrelatedmodules/osdemo.py b/Sep21/EffectivePython/StandardLibrary/osandrelatedmodules/osdemo.py
@@ -0,0 +1,44 @@
+import os
+
+
+
+def current_cwd():
+    cwd = os.getcwd()
+    print(f"the current working directory is {cwd}")
+
+if __name__ == "__main__":
+    current_cwd()
+    os.chdir("../")
+    current_cwd()
+    folder_path = os.path.join(os.getcwd(),'osandrelatedmodules')
+    os.chdir(folder_path)
+    current_cwd()
+    parent_directory = os.getcwd()
+    data_dir = os.path.join(parent_directory,"data")
+    if not os.path.exists(data_dir):
+        os.mkdir(data_dir)
+
+    
+    # recursive folder creation
+    csv_dir = os.path.join(data_dir,"files", "csv")
+    if not os.path.exists(csv_dir):
+        os.makedirs(csv_dir)
+
+    parent_directory = "D:\\khajaclassroom\\python_intensive"
+    dir_list = os.listdir(parent_directory)
+    print(dir_list)
+
+    parent_directory="D:\\temp\\test"
+    for root, d_names, f_names in os.walk(parent_directory):
+        print(root,d_names,f_names)
+
+    # Commonly used functions
+    print(os.name)
+
+    #os.rename(src="test.txt", dst="newtest.txt")
+
+    #os.path.getsize()
+
+
+    
+
