update black

task_handle/cmd_execution.py

@@ -1,15 +1,15 @@
-
 import os, subprocess
 
-def execute_cmd(cmd:str) -> str:
+
+def execute_cmd(cmd: str) -> str:
     """
     Execute the command in the mac terminal.
-    
+
     Parameters
     ----------
     cmd: str
         The command to be executed.
-    
+
     Returns
     ----------
     output: str
@@ -17,17 +17,17 @@ def execute_cmd(cmd:str) -> str:
     """
     try:
         # execute the command in the system terminal
-        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr = None, shell=True)
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=None, shell=True)
         output = ""
         # some tools may take time to execute. Wait until the output is finished.
         while True:
             line_output = p.stdout.readline()
             if line_output:
                 output += line_output.decode("utf-8")
-            if line_output == b'' and p.poll() is not None:
+            if line_output == b"" and p.poll() is not None:
                 break
 
         return output
     except Exception as e:
         print("Error in executing the command:", e)
-        return None
+        return None