python-テキスト進捗バー+タイミングtimeライブラリ関数

#TextProBarV3.py
import time
scale = 50    #      
print("    ".center(scale//2, "-"))
start = time.perf_counter()     #time  perf_counter          ，     
for i in range(scale+1):
    a = '*' * i
    b = '.' * (scale - i)
    c = (i/scale)*100
    dur = time.perf_counter() - start
    print("\r{:^3.0f}%[{}->{}]{:.2f}s".format(c,a,b,dur),end='') #r            ，IDLE   /r  ，  cmd python      
    time.sleep(0.1)
print("
"+"    ".center(scale//2,'-'))

#TextProBarV1.py
import time
scale = 10
print("------    ------")
for i in range(scale+1):
    a = '*' * i
    b = '.' * (scale - i)
    c = (i/scale)*100
    print("{:^3.0f}%[{}->{}]".format(c,a,b))
    time.sleep(0.1)
print("------    ------")

#TextProBarV2.py
import time
for i in range(101):
    print("\r{:3}%".format(i), end="")
    time.sleep(0.1)