#  Distance.py  Copyright (c) Kari Laitinen

#  http://www.naturalprogramming.com

#  2006-05-28  File created.
#  2022-12-16  Converted to Python 3.

#  Python 'understands' the same format specifiers (e.g. %f)
#  as the Java printf() method and the C prinf() function.

#  Operator % is used between the string that contains
#  the format specifier and the value that will be put
#  in place of the format specifier. (In this use % can be
#  called the string formatting operator. % is also the
#  remainder (modulo) operator in Python.)

#  If there are several format specifiers in a string,
#  the corresponding values must be given inside
#  parentheses. A list of values inside parentheses form
#  a tuple.

print( "\n This program converts meters to other units of"   \
       "\n distance. Please, enter a distance in meters: ", end=" " )

distance_in_meters  =  float( input() )

distance_in_kilometers  =  distance_in_meters / 1000.0
distance_in_miles       =  6.21371e-4 *  distance_in_meters
distance_in_yards       =  1.093613   *  distance_in_meters
distance_in_feet        =  3.280840   *  distance_in_meters
distance_in_inches      =  12         *  distance_in_feet
distance_in_light_years  =  distance_in_meters /  \
                         ( 2.99793e8 * 365 * 24 * 3600 )

print( "\n %f meters is: \n"   %  distance_in_meters, end="" )

print( "%15.3f  kilometers\n"  %  distance_in_kilometers, end="" )
print( "%15.3f  miles \n"      %  distance_in_miles, end="" )
print( "%15.3f  yards \n"      %  distance_in_yards, end="" )

#  The following statement occupies two program lines. A backslash
#  is not needed here because a comma separated list of values
#  may continue on the following line.

print( "%15.3f  feet  \n%15.3f  inches \n"  % ( distance_in_feet,
                                               distance_in_inches ), end="" )

print( "%15.5e  light years \n"  %  distance_in_light_years )