On 3/7/12 5:50 AM, Zoresvit wrote:
Is there a way to use new Python string formatting
<http://docs.python.org/library/string.html> in Sage without disabling
the preparser?
For now I get the following:
sage: "int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin: {0:#b}".format(42)
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/zoresvit/devel/ciphering/algebraic/<ipython console> in <module>()
ValueError: Unknown format code 'd' for object of type 'str'
If the preparser is off, everything works:
sage: preparser(False)
sage: "int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin: {0:#b}".format(42)
'int: 42; hex: 0x2a; oct: 0o52; bin: 0b101010'
The problem is that apparently format doesn't accept Integers:
sage: "int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin: {0:#b}".format(int(42))
'int: 42; hex: 0x2a; oct: 0o52; bin: 0b101010'
sage: "int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin:
{0:#b}".format(Integer(42))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/Users/grout/jason/drake/linear-algebra/Exams/<ipython console> in
<module>()
ValueError: Unknown format code 'd' for object of type 'str'
Thanks,
Jason
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