How to set the pandas dataframe data left/right alignment?

Question

I use pd.set_option(\"display.colheader_justify\",\"right\") to set the column header. But I can\'t find the option for data by pd.describe_option()

Answer 1

In my situation, I have a class wrapper around my Pandas DataFrame. This allows me to left-justify the DataFrame's string output by customizing the wrapper's __str__() method.

Here's how I solved the problem for my application, based on Unutbu's answer to a similar question. The Pandas DataFrame is referenced by self.data:

def __str__(self):
    """
    Return the test stats report as a single string
    with left-justified columns.

    """
    # Columns containing boolean values need different format strings
    # to avoid 'ValueError: Invalid format specifier' exceptions.
    BOOL_COLUMNS = ['success',]

    formatters = {}
    for li in list(self.data.columns):
        if li in BOOL_COLUMNS:
            form = "{{!s:<5}}".format()
        else:
            max = self.data[li].str.len().max()
            form = "{{:<{}s}}".format(max)

        formatters[li] = functools.partial(str.format,form)

    return self.data.to_string(formatters=formatters, index=False)