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I want to create a formatted string with fixed size with fixed position between fields. An example explains better, here there are clearly 3 distinct fields and the string is a fixed size:
XXX 123 98.00 YYYYY 3 1.00 ZZ 42 123.34 How can I apply such formatting to a string in python (2.7)?
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In Python, strings have a built-in method named ljust . The method lets you pad a string with characters up to a certain length. The ljust method means "left-justify"; this makes sense because your string will be to the left after adjustment up to the specified length.
Show activity on this post. def splitter(str): for i in range(1, len(str)): start = str[0:i] end = str[i:] yield (start, end) for split in splitter(end): result = [start] result. extend(split) yield result el =[]; string = "abcd" for b in splitter("abcd"): el.
The %s operator is put where the string is to be specified. The number of values you want to append to a string should be equivalent to the number specified in parentheses after the % operator at the end of the string value. The following Python code illustrates the way of performing string formatting.
Format a Floating Number to a Fix Width Using round() Function in Python. We can also use the round() function to fix the numbers of digits after the decimal point. This function limits the number of digits after the decimal point on the input number.
Sure, use the .format method. E.g.,
print('{:10s} {:3d} {:7.2f}'.format('xxx', 123, 98)) print('{:10s} {:3d} {:7.2f}'.format('yyyy', 3, 1.0)) print('{:10s} {:3d} {:7.2f}'.format('zz', 42, 123.34)) will print
xxx 123 98.00 yyyy 3 1.00 zz 42 123.34 You can adjust the field sizes as desired. Note that .format works independently of print to format a string. I just used print to display the strings. Brief explanation:
10sformat a string with 10 spaces, left justified by default
3dformat an integer reserving 3 spaces, right justified by default
7.2fformat a float, reserving 7 spaces, 2 after the decimal point, right justfied by default.
There are many additional options to position/format strings (padding, left/right justify etc), String Formatting Operations will provide more information.
Update for f-string mode. E.g.,
text, number, other_number = 'xxx', 123, 98 print(f'{text:10} {number:3d} {other_number:7.2f}') For right alignment
print(f'{text:>10} {number:3d} {other_number:7.2f}') If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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