from astral import sun
import pytz
import math
city = LocationInfo("Hefei", "China", "Asia/Shanghai", 31.798172,117.116531)
print((
f"Information for {city.name}/{city.region}\n"
f"Timezone: {city.timezone}\n"
f"Latitude: {city.latitude:.02f}; Longitude: {city.longitude:.02f}\n"))
test=[t.replace(tzinfo=pytz.timezone('Asia/Shanghai')) for t in obsdata[date_str].index]
zenith=[sun.zenith(city,i,False) for i in test]
now=datetime.now()
now.tzinfo==None
python
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