How are booleans formatted in Strings in Python

Question

I see I can t do     b  b     True  False    in Python  I guessed  b for b oolean   Is there something like this

User · Answer

You may also use the Formatter class of string

print "{0} {1}".format(True, False);
print "{0:} {1:}".format(True, False);
print "{0:d} {1:d}".format(True, False);
print "{0:f} {1:f}".format(True, False);
print "{0:e} {1:e}".format(True, False);

These are the results

True False
True False
1 0
1.000000 0.000000
1.000000e+00 0.000000e+00

Some of the %-format type specifiers (%r, %i) are not available. For details see the Format Specification Mini-Language

User · Answer

To update this for Python-3 you can do this          format True  False    However if you want to actually format the string  e g  add white space   you encounter Python casting the boolean into the underlying C value  i e  an int   e g     gt  gt  gt      lt 8      format True  False   1        False    To get around this you can cast True as a string  e g    gt  gt  gt      lt 8      format str True   False   True     False

User · Answer

If you want True False use     s  s     True  False    because str True  is  True  and str False  is  False    or if you want 1 0 use     i  i     True  False    because int True  is 1 and int False  is 0

User · Answer

gt  gt  gt  print   r   r     True  False  True  False   This is not specific to boolean values -  r calls the   repr   method on the argument    s  for str  should also work

[python] How are booleans formatted in Strings in Python?

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