[英]printing out dictionary values after filtering through it
我需要能夠打印出符合脫粒保持標准的正確郵政編碼,我可以對它們進行過濾並對其進行操作,但是最后一步是打印哪些郵政編碼位於中心50英里范圍內。 這是我的代碼
import sys
import csv
import math
dicts = {}
origin =[]
#methods to convert to radians
def getLatRad(latitude):
return float(latitude) * (math.pi/180.0)
def getLongRad(longitude):
return float(longitude) * (math.pi/180.0)
#method to find which zipcodes are within thresh
def getnearbylist(center, thresh, ziplist):
try:
f = open("zips.csv")
csvParser = csv.reader(f)
for row in csvParser:
zipcode= row[0].strip()
latitude= row[2].replace('"', '').strip()
longitude=row[3].replace('"', '').strip()
dicts[zipcode] = {'zipcode':zipcode,'latitude': latitude, 'longitude':longitude}
if center in dicts:
origin=dicts[center]
longRad2= getLongRad(origin['longitude'])
latRad2= getLatRad(origin['latitude'])
matched = {match: dicts[match] for match in ziplist if match in dicts}
for x in matched:
longRad1= getLongRad(matched[x]['longitude'])
latRad1= getLatRad(matched[x]['latitude'])
dlon = longRad2 - longRad1
dlat = latRad2 - latRad1
a = math.sin(dlat/2)**2 + math.cos(latRad1) * math.cos(latRad2) * math.sin(dlon/2)**2
c = 2 * math.asin(math.sqrt(a))
m = 3960 * c
if m <thresh: # cant figure out how to return zipcodes instead of m value
print m
except ValueError:
pass
def main():
center = '12601' # Our center zipcode
thresh = 50 # We are looking for zipcodes within 50 miles
ziplist = ['12481', '10001', '12203', '10303', '12561'] # Our test list
nearbylist = getnearbylist(center, thresh, ziplist) # Call the function
print nearbylist
if __name__ == '__main__':
main()
因此,我不想打印m,而是要返回郵政編碼,謝謝!
您需要捕獲附近的拉鏈。
#capture the nearby zips in a new dict
near_zips={}
for x in matched:
longRad1= getLongRad(matched[x]['longitude'])
latRad1= getLatRad(matched[x]['latitude'])
dlon = longRad2 - longRad1
dlat = latRad2 - latRad1
a = math.sin(dlat/2)**2 + math.cos(latRad1) * math.cos(latRad2) * math.sin(dlon/2)**2
c = 2 * math.asin(math.sqrt(a))
m = 3960 * c
if m <thresh: # cant figure out how to return zipcodes instead of m value
#add the nearby zipcodes to the dict
print '%f < %f' % (m,thresh)
print 'adding %s to near_zips' % (x,)
near_zips[x] = matched[x]
#return the nearby zips
return near_zips
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