3.format() method
- Page ID
- 431908
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"text {} text {} text {}." .format(var1, var2, var3)
- Can use index numbers
- Place width and precision in curly brackets ({}).
Index Numbers
What value do index numbers in Python start with (what is the index number of the first variable?
- Answer
-
0, atom one is the first variable and has an index number of zero.
Width and Precision
Analyze the following code, predict the output and run. If it is different than predicted, be sure to understand why.
Note; we are using the pipe symbol (|) to indicate the divider between two columns in our data output. The first column is the names of elements are they are string variables, and the second are their molar masses, and they are floats
Adjust the code above so the print output of the atomic masses below the row of stars show a precision of 4 decimal places
- Answer
-
print("{0:10}|{1:10.4f}\n{2:10}|{3:10.4f}".format("hydrogen",1.00784, "helium", 4.002602))
Aligning columns
Run and analyze the following code to figure out the syntax to left align, right align and center align data in a columns.