PEP 3101

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See for more information and discussion of code modifications that may be required. Contributed by Terry Jan Reedy in. Instead, the gzipped tarfile format is the default on all platforms and no platform-specific selection is made.

If you call an index number of 2 in a tuple that has values at index positions 0 and 1, then you are calling on a value that is out of range. Conclusion This tutorial went through some of the common built-in methods for the string data type that you can use to work with and manipulate strings in your Python programs. Contributed by Brett Cannon in.

PEP 3101

Python has had awesome string formatters for many years but the documentation on them is far too theoretic and technical. All examples on this page work out of the box with with Python 2. Use it if the order of your arguments is not likely to change and you only have very few elements you want to concatenate. Since the elements are not represented by something as descriptive as a name this simple style should only be used to format a relatively small number of elements. The new-style simple formatter calls by default the method of an object for its representation. If you just want to python 3 6 format string the output of str. In %-style you usually use %s for the string representation but there is %r for a repr. By default values are formatted to take up only as many characters as needed to represent the content. It is however also possible to define that a value should be padded to a specific length. Unfortunately the default alignment differs between old and new style formatting. The old style defaults to right aligned while for new style it's left. Align right: Again similar to truncating strings the python 3 6 format string for floating point numbers limits the number of positions after the decimal point. For floating points the padding value represents the length of the complete output. In the example below we want our output to have at least 6 characters with 2 after the decimal point. Additionally, new style formatting allows all of the components of the format to be specified dynamically using parametrization. Parametrized formats are nested expressions in braces that can appear anywhere in the parent format after the colon. Old style formatting also supports some parametrization but is much more limited. Namely it only allows parametrization of the width and precision of the output. Parametrized alignment and width: This operation is not available with old-style formatting.

Contributed by Ramchandra Apte in. All examples on this page work out of the box with with Python 2. This value is not locale-dependent. This is the same as 'g', except that it uses the current locale setting to insert the appropriate number separator characters. The class and relevant classes in have also been updated to implement.