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How would I have an improper DMS value input return a message to the user in a Python 3 function?

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0

My question is about input functions in python 3 specifically for a conversion function from dms to dd.

I'm new to python3 and having some trouble understanding how I would allow a user to input their DMS coordinate and have them limited by a 0-90 range, so if they put something like 100, or -1, the code would return a statement asking them to input a valid DMS format.

Below is my code - I think my if statement is where the trouble is happening. When I'm indicating if variable(x,x,x) - would that indicate the format the user would need to input their coordinate in?

def dms_convert_to_dd(degrees, minutes, seconds):

    dd = degrees + float(minutes) / 60 + float(seconds) / 3600

    return dd



dms = input('Please enter your DMS coordinate: ')

if dms_convert_to_dd(degrees, minutes, seconds) in range(0, 90):

    print(dd)

else:

    print("Please enter correct DMS coordinates")

python-3 degrees-minutes-seconds

share|improve this question

asked 11 mins ago

ChrisChris

215

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  100 degrees is valid for longitude, as is 180, -1, and -180. Your conversion function will not generate correct results in the western or southern hemisphere, and your validity test only considers integer values.
  
  – Vince
  9 mins ago
  
  
  

  
  
  
  

add a comment | 

0

My question is about input functions in python 3 specifically for a conversion function from dms to dd.

I'm new to python3 and having some trouble understanding how I would allow a user to input their DMS coordinate and have them limited by a 0-90 range, so if they put something like 100, or -1, the code would return a statement asking them to input a valid DMS format.

Below is my code - I think my if statement is where the trouble is happening. When I'm indicating if variable(x,x,x) - would that indicate the format the user would need to input their coordinate in?

def dms_convert_to_dd(degrees, minutes, seconds):

    dd = degrees + float(minutes) / 60 + float(seconds) / 3600

    return dd



dms = input('Please enter your DMS coordinate: ')

if dms_convert_to_dd(degrees, minutes, seconds) in range(0, 90):

    print(dd)

else:

    print("Please enter correct DMS coordinates")

python-3 degrees-minutes-seconds

share|improve this question

asked 11 mins ago

ChrisChris

215

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  100 degrees is valid for longitude, as is 180, -1, and -180. Your conversion function will not generate correct results in the western or southern hemisphere, and your validity test only considers integer values.
  
  – Vince
  9 mins ago
  
  
  

  
  
  
  

add a comment | 

My question is about input functions in python 3 specifically for a conversion function from dms to dd.

I'm new to python3 and having some trouble understanding how I would allow a user to input their DMS coordinate and have them limited by a 0-90 range, so if they put something like 100, or -1, the code would return a statement asking them to input a valid DMS format.

Below is my code - I think my if statement is where the trouble is happening. When I'm indicating if variable(x,x,x) - would that indicate the format the user would need to input their coordinate in?

def dms_convert_to_dd(degrees, minutes, seconds):

    dd = degrees + float(minutes) / 60 + float(seconds) / 3600

    return dd



dms = input('Please enter your DMS coordinate: ')

if dms_convert_to_dd(degrees, minutes, seconds) in range(0, 90):

    print(dd)

else:

    print("Please enter correct DMS coordinates")

python-3 degrees-minutes-seconds

share|improve this question

asked 11 mins ago

ChrisChris

215

def dms_convert_to_dd(degrees, minutes, seconds):

    dd = degrees + float(minutes) / 60 + float(seconds) / 3600

    return dd



dms = input('Please enter your DMS coordinate: ')

if dms_convert_to_dd(degrees, minutes, seconds) in range(0, 90):

    print(dd)

else:

    print("Please enter correct DMS coordinates")

share|improve this question

asked 11 mins ago

ChrisChris

215

share|improve this question

asked 11 mins ago

ChrisChris

215

asked 11 mins ago

ChrisChris

215

asked 11 mins ago

ChrisChris

215