Python的飞行距离和时间计算器

Question

有人可以帮我用这段代码吗？目前它显示错误：

ValueError: Invalid conversion specification

我不确定如何解决它。另外，你能告诉我如何正确地格式化这段代码，使它看起来更整齐一些，以及我是否做了其他错误的事情或是否会出现其他错误？

出于测试目的，如果你愿意，你可以使用两套经度和纬度：

Latitude: 17.935667 
Longitude: -76.7875 

和

Latitude: -34.945 
Longitude: 138.530556 

这里是我的代码：

import math 

radius = 6371.01 

city1 = raw_input("First city: ") 
x1 = float(input("First latitude: ")) 
y1 = float(input("First longitude: ")) 
city2 = raw_input("Second City: ") 
x2 = float(input("Second latitude: ")) 
y2 = float(input("Second longitude: ")) 

def distance(radius, x1, x2, y1, y2): 

    d = radius * math.acos(math.sin(x1)*math.sin(x2)+math.cos(x1)*math.cos(x2)*math.cos(abs(y1-y2))) 
    return d 

distance = distance(radius, x1, x2, y1, y2) 

Blackbird = 3230 
BombardierCRJ1000 = 870 

tbird = distance/3230 
tBombardierCRJ1000 = distance/870 

cseconds = tBombardierCRJ1000 * 60 * 60 * 60 
hctime = cseconds/3600 
cseconds -= 3600*hctime 
mctime = cseconds/60 

hseconds = tbird * 60 * 60 * 60 
hhtime = hseconds/3600 
hseconds -= 3600*hhtime 
mhtime = hseconds/60 

print("Commercial aircraft: Bombardier CRJ 1000 - 870 km/hr") 
print("High-Speed aircraft: SR-71 Blackbird - 1354 km/hr") 

print("Departure") 
print("City   Latitude Longitude") 
print("{0:s}   {1:.5f} - {2:.5f)}" .format(city1, x1, y1))  
print("--------------------------------------------------------------- -------") 
print("Destination") 
print("City   Latitude Longitude Distance Commercial  High-Speed") 
print("          (km)  Time (h:m)  Time (h:m)") 
print("{0:s}  {1:.5f}  {2:.5f}  {3:.2f}  {4:d}:{5:d}  {6:d}:{7:d}" .format(city2, x2,y2, distance, hctime,mctime, hhtime, mhtime)) 

Answer 1

有格式中出现语法错误。你应该从{2:.5f)}删除)：

print("{0:s}   {1:.5f} - {2:.5f}".format(city1, x1, y1)),