I would like create a simple loading screen using just print, something like this:
for x in range(5):
print("Loading...")
sleep(1)
os.system('cls')
How would I add more and more fullstops each time for 5 seconds? Is this attempt even close? Thank you!
Although vaguely you could use something like
seconds = 1
while():
i = "." * seconds
sys.stdout.write("\rLoading {}", %i)
seconds += 1
if seconds == 4: seconds = 1
time.sleep(5)
but i would highly suggest you use tqdm which will have almost every case you want to use.
Without knowing what else is going on in your application or how it is structured; you can start with your loading message and then add what you want on each iteration of the loop. Something like this:
import os
from time import sleep
msg = "Loading.."
for x in range(5):
msg = msg + "."
print(msg)
sleep(1)
os.system("cls")
print("%sDone!" % msg)
% is for string formatting with variables, one %s for each variable. So if you had multiple variables you would write it like print("Name: %s %s" % (firstName, lastName)) There is some reference reading here pyformat.info
os.system("cls") you can simply use print like this: print(f"\r{msg}", end='')Using fstrings, you can update the number of full stops by multiplying with your x in the loop
import os
from time import sleep
for x in range(5):
print(f"Loading{'.'*(x+1)}")
sleep(1)
os.system('cls')
Loading.
Loading..
Loading...
Loading....
Loading.....
I am not sure about what you mean by "fullstops", but here is something that can help you:
import time
print('Loading', end='')
for x in range(5):
print('.', end='')
time.sleep(1)
print('')
The output will be iteratively on the same line:
Loading
Loading.
Loading..
Loading...
Loading....
Loading.....
If you want to create a loading bar you can use the package LoadBar.
pip install load-bar termcolor
import time
from loadbar import LoadBar
bar = LoadBar(
max=5
)
bar.start()
for x in range(5):
bar.update(step=x)
time.sleep(1)
bar.end()
The output will be iteratively on the same line:
0/5 ( 0%) [. ] ETA -:--:--
1/5 ( 20%) [..... ] ETA 0:00:04
2/5 ( 40%) [......... ] ETA 0:00:03
3/5 ( 60%) [............. ] ETA 0:00:02
4/5 ( 80%) [................. ] ETA 0:00:01
5/5 (100%) [....................] Time 0:00:05
This is not a direct answer to your practical question, but I would consider using tqdm.
With this module you can create a progress bar which I find more elegant than using these print statemenets.
Try this:
from tqdm import trange
from time import sleep
for i in trange(100):
sleep(0.01)
You can look at the docs for more examples here
