[Python] laser turns on without input

i have a setup with a microcontroller where pushing a button i attached with gpio pins turns on a laser pointer using gpio pins. this is part of a larger project including speakers and other leds and buttons etc, so even if i do just hook them up directly and add a battery, the issue would just move to other components. the issue is that about every second it turns its self on and then off the next second. unless i am massively blind and stupid, this isnt a code issue, but here is the code anyway:

import digitalio
import board
import time

laser = digitalio.DigitalInOut(board.GP25)
laser.direction = digitalio.Direction.OUTPUT

button = digitalio.DigitalInOut(board.GP3)
button.direction = digitalio.Direction.INPUT

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

while True:
if button.value == True:
laser.value = True
else:
laser.value = False

time.sleep(0.1)
led.value = True
time.sleep(0.1)
led.value = False

print(str(laser.value) + str(time.time()))



(written in circutpython. if there are typos, i manually copied it from my pi to here. long story. to be clear im using the pi to edit it and run on a couple microcontrollers im not running it on my pi directly)

when the laser is on, the code reads out that the value of button is True.

there is also a problem where if i push the side of the pins sometimes it causes it to read true too.

i soldered 3 different microcontrollers thinking it was a soldering problem. 1 raspberry pi pico and 2 xiao seeed 2040. the last xiao board i did did not have the problem where pushing pins caused it to read true, but it did cycle through true false every 2 seconds.

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