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Download script from .\base.py
import sys
argv = sys.argv
narg = len(argv)
if narg <= 3:
print("")
print("Usage: python {} val base_source base_target".format(argv[0]))
print("")
exit()
else:
val = argv[1]
base_source = int(argv[2])
base_target = int(argv[3])
base_chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
base_chars_dict = {
"0": 0
,"1": 1
,"2": 2
,"3": 3
,"4": 4
,"5": 5
,"6": 6
,"7": 7
,"8": 8
,"9": 9
,"A": 10
,"B": 11
,"C": 12
,"D": 13
,"E": 14
,"F": 15
,"G": 16
,"H": 17
,"I": 18
,"J": 19
,"K": 20
,"L": 21
,"M": 22
,"N": 23
,"O": 24
,"P": 25
,"Q": 26
,"R": 27
,"S": 28
,"T": 29
,"U": 30
,"V": 31
,"W": 32
,"X": 33
,"Y": 34
,"Z": 35
}
if base_source > len(base_chars_dict):
print("")
print("Error: base_source [{}] is too large.".format(base_source))
print("")
exit()
if base_target > len(base_chars_dict):
print("")
print("Error: base_target [{}] is too large.".format(base_target))
print("")
exit()
def value_base(char, b):
return base_chars_dict[char]
print("")
print("Convert {} in base {} to base 10".format(val, base_source))
nstr = len(val)
v10 = 0
for i in range(nstr):
idx = nstr - 1 - i
v = value_base(val[idx], base_source)
if v >= base_source:
print("Error: The value at the {}-th digit {} is not compatible with base {}"
.format(i, v, base_source))
exit()
dv = v * base_source**i
v10 += dv
print("{}-th digit = {}_{}:".format(i, v, base_source), end = '')
print(" + {}^{} => + {:10}_10 => {:10}_10".format(v, base_source, dv, v10))
b10 = str(v10)
print("")
print("Convert {} in base 10 to base {}".format(b10, base_target))
vnext = v10
starget = ''
while 1:
n = int(vnext / base_target)
residue = vnext % base_target
starget = base_chars[residue] + starget
print("{:10} = {:10} * {:10} + {:2}:".format(vnext, n, base_target, residue), end = '')
print(" base_{} => {}".format(base_target, starget))
if n == 0:
break
vnext = n
print("")
