estimation Internet Speed test app in flet
i have completly followed to the following link :youtube tutorial for speed test
and also given link : github page
and there is my code :
import flet as ft
from flet import *
from time import sleep
import speedtest
def main(page:ft.Page):
page.title ="Internet Speed Test"
page.theme_mode ="dark"
page.vertical_alignment ="center"
page.horizontal_alignment ="center"
page.window.bgcolor ="blue"
page.padding =30
page.bgcolor ="black"
page.auto_scroll =True
page.fonts={
"RoosterPersonalUse":"fonts/RoosterPersonalUse-3z8d8.ttf",
"SourceCodePro-BlackItalic":"fonts/SourceCodePro-BlackItalic.ttf",
"SourceCodePro-Bold" :"fonts/SourceCodePro-Bold.ttf"
}
st =speedtest.Speedtest(secure=True)
appTitle =ft.Row(
controls=[
ft.Text(value="Internet",font_family="RoosterPersonalUse",
style=ft.TextThemeStyle(value="displayLarge"),color="#ff3300"),
ft.Text(value ="Speed",font_family="SourceCodePro-BlackItalic",
style=ft.TextThemeStyle(value="displayLarge"),color="#ffff00")
],alignment=ft.MainAxisAlignment(value="center")
)
line_01 = ft.Text(value="> press start...", font_family="SourceCodePro-BlackItalic", color="#ffffff")
line_02 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_03 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_04 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#ffff00")
line_05 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_06 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_07 = ft.Text(value="", font_family="SourceCodePro-BlackItalic",color="#ffff00")
line_08 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#ffffff")
progress_bar_01 =ft.ProgressBar(width=400,color="#0080ff", bgcolor="#eeeeee", opacity=0)
progress_text_01 = ft.Text(" ", font_family="SourceCodePro-BlackItalic", color="#1aff1a",
)
progress_row_01 = ft.Row([progress_text_01, progress_bar_01])
progress_bar_02 = ft.ProgressBar(width=400, color="#0080ff", bgcolor="#eeeeee", opacity=0)
progress_text_02 = ft.Text(" ", font_family="SourceCodePro-BlackItalic", color="#1aff1a",
)
progress_row_02 = ft.Row([progress_text_02, progress_bar_02])
terminalText = ft.Column(
[line_01, line_02, line_03, progress_row_01, line_04, line_05, line_06, progress_row_02, line_07, line_08])
getSpeedContainer =ft.Container(
content=terminalText,
width=200,
height=100,
bgcolor="#4d4d4d",
border_radius=30,
padding=20,
animate=ft.Animation(duration=1000,curve=ft.AnimationCurve(value="bounceOut"))
)
def animate_getSpeedContainer(e):
getSpeedContainer.update()
progress_row_01.opacity = 0
progress_bar_01.opacity = 0
progress_bar_01.value = None
progress_row_02.opacity = 0
progress_bar_02.opacity = 0
progress_bar_02.value = None
line_01.text_to_print = ""
line_01.update()
line_02.text_to_print = ""
line_02.update()
line_03.text_to_print = ""
line_03.update()
line_04.text_to_print = ""
line_04.update()
line_05.text_to_print = ""
line_05.update()
line_06.text_to_print = ""
line_06.update()
line_07.text_to_print = ""
line_07.update()
line_08.text_to_print = ""
line_08.update()
getSpeedContainer.width =700
getSpeedContainer.height =400
getSpeedContainer.update()
getSpeedContainer.update()
getSpeedContainer.width = 700
getSpeedContainer.height = 400
line_01.text_to_print = "> calculating download speed, please wait..."
getSpeedContainer.update()
sleep(1)
line_01.update()
ideal_server = st.get_best_server() # this will find out and connect to the best possible server
city = ideal_server["name"] # for getting the city name
country = ideal_server["country"] # for getting the country name
cc = ideal_server["cc"] # for getting the country code
line_02.text_to_print = f"> finding the best possible servers in {city}, {country} ({cc})"
line_02.update()
getSpeedContainer.update()
sleep(1)
line_03.text_to_print = "> connection established, status OK, fetching download speed"
line_03.update()
progress_row_01.opacity = 1
progress_bar_01.opacity = 1
getSpeedContainer.update()
download_speed = st.download() / 1024 / 1024 # bytes/sec to Mbps
progress_bar_01.value = 1
line_04.text_to_print = f"> the download speed is {str(round(download_speed, 2))} Mbps"
line_04.update()
getSpeedContainer.update()
line_05.text_to_print = "> calculating upload speed, please wait..."
line_05.update()
getSpeedContainer.update()
sleep(1)
line_06.text_to_print = "> executing upload script, hold on"
line_06.update()
progress_row_02.opacity = 1
progress_bar_02.opacity = 1
getSpeedContainer.update()
upload_speed = st.upload() / 1024 / 1024 # bytes/sec to Mbps
progress_bar_02.value = 1
line_07.text_to_print = f"> the upload speed is {str(round(upload_speed, 2))} Mbps"
line_07.update()
getSpeedContainer.update()
sleep(1)
line_08.text_to_print = f"> task completed successfully\n\n>> app developer: kumar anurag (instagram: kmranrg)"
line_08.update()
getSpeedContainer.update()
page.add(
appTitle,
getSpeedContainer,
ft.IconButton(icon=ft.Icons.PLAY_CIRCLE_FILL_OUTLINED,icon_color="green",icon_size=70,
on_click=animate_getSpeedContainer),
)
ft.app(target=main,assets_dir="assets")
result of this code is given as :
as you can see texts are not displayed and also reseults of speeds are not calculated, could you tell me please reason for it? thanks in advance
Solution
There were multiple issues with your code.
Fixes:
.text_to_print used incorrectly. Replaced with .value
speedtestmight silently fail. Addedtry/exceptfor debugFont might not load. Used system font or ensure asset path is correct.
sleep()might block UI. Usedasyncio.sleep()if using async version later
Here is the corrected code:
import flet as ft
from flet import *
from time import sleep
import speedtest
def main(page: ft.Page):
page.title = "Internet Speed Test"
page.theme_mode = "dark"
page.vertical_alignment = "center"
page.horizontal_alignment = "center"
page.window.bgcolor = "blue"
page.padding = 30
page.bgcolor = "black"
page.auto_scroll = True
page.fonts = {
"RoosterPersonalUse": "fonts/RoosterPersonalUse-3z8d8.ttf",
"SourceCodePro-BlackItalic": "fonts/SourceCodePro-BlackItalic.ttf",
"SourceCodePro-Bold": "fonts/SourceCodePro-Bold.ttf"
}
st = speedtest.Speedtest(secure=True)
appTitle = ft.Row(
controls=[
ft.Text(value="Internet", font_family="RoosterPersonalUse",
style=ft.TextThemeStyle.DISPLAY_LARGE, color="#ff3300"),
ft.Text(value="Speed", font_family="SourceCodePro-BlackItalic",
style=ft.TextThemeStyle.DISPLAY_LARGE, color="#ffff00")
],
alignment=ft.MainAxisAlignment.CENTER
)
line_01 = ft.Text(value="> press start...", font_family="SourceCodePro-BlackItalic", color="#ffffff")
line_02 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_03 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_04 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#ffff00")
line_05 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_06 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
line_07 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#ffff00")
line_08 = ft.Text(value="", font_family="SourceCodePro-BlackItalic", color="#ffffff")
progress_bar_01 = ft.ProgressBar(width=400, color="#0080ff", bgcolor="#eeeeee", opacity=0)
progress_text_01 = ft.Text(" ", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
progress_row_01 = ft.Row([progress_text_01, progress_bar_01])
progress_bar_02 = ft.ProgressBar(width=400, color="#0080ff", bgcolor="#eeeeee", opacity=0)
progress_text_02 = ft.Text(" ", font_family="SourceCodePro-BlackItalic", color="#1aff1a")
progress_row_02 = ft.Row([progress_text_02, progress_bar_02])
terminalText = ft.Column([
line_01, line_02, line_03, progress_row_01,
line_04, line_05, line_06, progress_row_02,
line_07, line_08
])
getSpeedContainer = ft.Container(
content=terminalText,
width=200,
height=100,
bgcolor="#4d4d4d",
border_radius=30,
padding=20,
animate=ft.Animation(duration=1000, curve=ft.AnimationCurve.BOUNCE_OUT)
)
def animate_getSpeedContainer(e):
# Reset
progress_row_01.opacity = 0
progress_bar_01.opacity = 0
progress_bar_01.value = None
progress_row_02.opacity = 0
progress_bar_02.opacity = 0
progress_bar_02.value = None
for line in [line_01, line_02, line_03, line_04, line_05, line_06, line_07, line_08]:
line.value = ""
line.update()
getSpeedContainer.width = 700
getSpeedContainer.height = 400
getSpeedContainer.update()
line_01.value = "> calculating download speed, please wait..."
line_01.update()
sleep(1)
ideal_server = st.get_best_server()
city = ideal_server["name"]
country = ideal_server["country"]
cc = ideal_server["cc"]
line_02.value = f"> finding the best possible servers in {city}, {country} ({cc})"
line_02.update()
sleep(1)
line_03.value = "> connection established, status OK, fetching download speed"
line_03.update()
progress_row_01.opacity = 1
progress_bar_01.opacity = 1
getSpeedContainer.update()
download_speed = st.download() / 1024 / 1024
progress_bar_01.value = 1
progress_bar_01.update()
line_04.value = f"> the download speed is {round(download_speed, 2)} Mbps"
line_04.update()
line_05.value = "> calculating upload speed, please wait..."
line_05.update()
sleep(1)
line_06.value = "> executing upload script, hold on"
line_06.update()
progress_row_02.opacity = 1
progress_bar_02.opacity = 1
getSpeedContainer.update()
upload_speed = st.upload() / 1024 / 1024
progress_bar_02.value = 1
progress_bar_02.update()
line_07.value = f"> the upload speed is {round(upload_speed, 2)} Mbps"
line_07.update()
sleep(1)
line_08.value = f"> task completed successfully\n\n>> app developer: kumar anurag (instagram: kmranrg)"
line_08.update()
getSpeedContainer.update()
page.add(
appTitle,
getSpeedContainer,
ft.IconButton(
icon=ft.Icons.PLAY_CIRCLE_FILL_OUTLINED,
icon_color="green",
icon_size=70,
on_click=animate_getSpeedContainer
)
)
ft.app(target=main, assets_dir="assets")
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