Currently if I wish to print debug messages, the usage is something like this:

from wasabi import msg
msg.info('Hello', show=is_verbose)

But now is_verbose is scattered everywhere in code. I'd like to propose a class-level variable for Printer that sets the is_verbose flag once with the Printer and a msg.debug() function that will print based on this flag. Essentially a flag for log level is what I am looking for.

Proposed Usage:

from wasabi import Printer
msg = Printer(is_verbose=True)
msg.debug('Hello') # This prints to console
msg = Printer(is_verbose=False)
msg.debug('Hello') # This does not print to console

Let me know if this usage makes sense and I can contribute a PR or maybe there is an existing way to achieve this functionality that I am probably now aware of? :)

Hello,

I couldn't find anything in the docs about how to get rid of the "Loading..." text fully after the loading is "finished"? I tried it in a Jupyter Notebook and this is the result:

Any suggestions?

As of now, wasabi just calls print(), which by default prints to the stdout. In my opinion, this is wrong, as stdout (in the Unix ideology) should be used to output the result of the program (for eventual piping), while stderr should be used for warnings and errors.

I propose adding a "stream" parameter to Printer.__init__(), which by default should be set to sys.stderr. You can then use it inside the print() call.

If you're low on free time, I can implement this, too :)

Hi @ines

Lovely tool!

In Printer I can provide my own colors dictionary but that is not an option in TracebackPrinter. The colors being used there are defined by wasabi.COLORS. I need to change it since Pycharm only supports certain ANSI colors. Is that possible?

Btw. do you combine wasabi with logging module? I was considering adding a WasabiStreamHandler but maybe it already exists?

It seems that colors do not work in Windows.
In an ipython session:

In a python script:

Also, the following example, that is stated in the readme, does not work, at least in my Windows box.

msg = Printer()
with msg.loading("Loading..."):
    # Do something here that takes longer
    time.sleep(10)
msg.good("Successfully loaded something!")

It should be wrapped under the __name__ == "__main__" like this:

if __name__ == "__main__":
    msg = Printer()
    with msg.loading("Loading..."):
        # Do something here that takes longer
        time.sleep(10)
    msg.good("Successfully loaded something!")

Otherwise you will get a RuntimeError:

An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.

I run into the following error when trying to run a simple sample snippet using msg.loading with wasabi

RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.

Here's the code snippet being executed:

from time import sleep
from wasabi import msg, Printer

msg = Printer()
msg.good("Starting")
msg.warn("Warning")
with msg.loading("Loading.."):
    sleep(3)
msg.good("done")

Python Version Information:

Python 3.8.5 (default, Sep 27 2020, 15:45:15) 
[Clang 9.0.0 (clang-900.0.39.2)] on darwin

wasabi version: 0.8.2

Would be happy to provide any additional info on this. Thanks! :)

Hello,
When I use wasabi and process bar package tqdm together, wasabi Printer's color will be invalid. Just like this:

code result:

How could it be like this？

The wrap function takes a wrap_max argument that controls the maximum line width. When I'm using the typical functions for printing formatted messages like good, fail, warn, and info, they are calling wrap internally, and there's no easy way to adjust the line width. The Printer class does have a line_max argument, but it's only used for dividers.

Can there be a way to adjust the default wrap_max value, either by configuring a Printer instance or via an environment variable? I'm using wasabi in my spaCy related projects, and the short 80 character output has been really limiting some of my logging output.

First of all, thanks for wasabi! It's really easy to use and most importantly, looks cool.

I just ran into an error using the context manager and no_print=True. I have a verbose option in my code that I'd like to use to control whether wasabi prints loading messages, but I've encountered an error. If I change the context manager example in the docs from msg = Printer() to msg = Printer(no_print=True), I get a RuntimeError. Full code, output, and error below:

from wasabi import Printer
import time

msg = Printer(no_print=True)
with msg.loading("Loading..."):
    # Do something here that takes longer
    time.sleep(5)
msg.good("Successfully loaded something!")

Nothing for 5 seconds, then the following:

⠙ Loading...
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-20-455695c9f881> in <module>()
      1 with msg.loading("Loading..."):
      2     # Do something here that takes longer
----> 3     time.sleep(5)
      4 msg.good("Successfully loaded something!")

~/anaconda3/lib/python3.6/contextlib.py in __exit__(self, type, value, traceback)
     90                 return False
     91             else:
---> 92                 raise RuntimeError("generator didn't stop")
     93         else:
     94             if value is None:

RuntimeError: generator didn't stop

⠧ Loading...