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| In version 7.2, SageMath is using the Python 2 syntax. It may soon switch to the Python 3 syntax, where print is a function. | In version 7.2, SageMath is using the Python 2 syntax for print. It may soon switch to the Python 3 syntax, where print is a function. |
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| To convert from python2 to python3, you basically need to add parentheses, and write print("x") instead of print "x". | ||<#FFFF66>To convert '''print''' from Python 2 to Python 3, you basically need to add parentheses, and write '''print("x")''' instead of '''print "x"'''.|| |
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| || Python 2 || Python 3 || | ||<#98FF98> Python 2 ||<#98FF98> Python 3 || || print a || print(a) || |
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| ||print "%03d" % 7 || print("{:03d}".format(7)) || |
Behaviour of print
The behaviour of print differs in Python 2 and in Python 3.
In version 7.2, SageMath is using the Python 2 syntax for print. It may soon switch to the Python 3 syntax, where print is a function.
To convert print from Python 2 to Python 3, you basically need to add parentheses, and write print("x") instead of print "x". |
Here is a conversion table to help you adapt your code:
Python 2 |
Python 3 |
print a |
print(a) |
print a, b, c |
print(a, b, c) |
print x, |
print(x, end=" ") |
print >>sys.stderr, x |
print(x, file=sys.stderr) |