DynamicMessage can't handle strings

[DarkRedman]

Description

I prefered to use DynamicMessage instead of FormatCustomText because it's easier to set up.
so I added a DynamicMessage widget and update its value with a string, and I get an error that the g format code doesn't work with an str

ValueError: Unknown format code 'g' for object of type 'str'

Code

import progressbar, time

widgets = [
    progressbar.Percentage(),
    progressbar.Bar(),
    progressbar.DynamicMessage('user'),
]
with progressbar.ProgressBar(max_value=100, widgets=widgets) as bar:
    for i in range(100):
        bar.update(i, user='me')
        time.sleep(0.2)`

Versions

• Python version: 3.7.3 (default, Mar 26 2019, 21:43:19)
  [GCC 8.2.1 20181127]
• Python distribution/environment: CPython
• Operating System: Antergos (Arch Linux)
• Package version: 3.39.3

Solution

In order to fix it I changed the code of function call of DynamicMessage like this

def __call__(self, progress, data):
    val = data['dynamic_messages'][self.name]
    if val:
            if isinstance(val,str):
                return self.name + ': ' + '{:6s}'.format(val)
            else:
                return self.name + ': ' + '{:6.3g}'.format(val)
    else:
        return self.name + ': ' + 6 * '-'

[wolph]

I've released a new version that supports strings as well :)

https://github.com/WoLpH/python-progressbar/blob/7075248b3320270116028be08fc5866b3847771c/examples.py#L439-L455

[DarkRedman]

That's so cool, congratulations ! 👍