hallerpatrick / frosch Goto Github PK

🐸 Debug faster than a frog catches a fly

Home Page: https://hallerpatrick.github.io/frosch/

License: MIT License

Python 100.00%

frosch's Introduction

Hi 🤗, I'm Patrick Haller
I am a PhD Student and currently deep diving into the field of Natural Language Processing.
In the mean time, I am looking to contribute to great Open Source projects.

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frosch's Issues

TypeError: hook() got an unexpected keyword argument 'theme'

Hi there,

just found out about frosch and wanted to give it a try, because I really like the idea!

But I've encountered a problem pretty soon. Using hook() without any config works just fine, but I think I'm just plain dumb or blind or both, but trying to configure hook with the theme argument raises an exception on my side.

What am I missing?

Print Debugging

Almost everything implement but the interface

from frosch import fprint as fp

fp(some_var)

Notification Support

Maybe provide a utiliy which triggers a notification on the OS system.
For now I know that this could work with MacOS and iTerm2 https://www.iterm2.com/features.html.

Windows 10 cmd/powershell not working

Cmd prompt or powershell, natively or in VS code:

Fix import

For now the imports are wrong

CI pipeline

Use github actions, add linter and tests. Also write some tests...

More configurability

This means for colours and maybe symbols. Frosch will in the future allow for way more configuration options for different purposes. We should therefore come up with a better config manager.

Multiline still not working with single parsable lines in statement

from frosch import hook

hook()

x = (
    3 +
    "String")

  File "C:\Users\user\venv37\lib\site-packages\frosch\frosch.py", line 118, in get_whole_expression
    raise SyntaxError("SyntaxError in line:{}".format(stack.lineno)) from error
SyntaxError: SyntaxError in line:8

Original exception was:
Traceback (most recent call last):
  File "main.py", line 8, in <module>
    "Striong")
TypeError: unsupported operand type(s) for +: 'int' and 'str'

Tested in cmd

Custom coloring

Allow for custom coloring which will can be passed in the hook function. Using the color themes from pygments

Values with large reprs

Example script:

from frosch import hook

hook()
x = list(range(10000))
x/0

Output:

Traceback (most recent call last):
  File "/home/alex/.config/JetBrains/PyCharm2020.3/scratches/scratch_1099.py", line 5, in <module>
    x/0
TypeError: unsupported operand type(s) for /: 'list' and 'int'

 5 || x / 0
   || │
   || └── x: list = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ... this goes on and prints the whole list, up to 9999

I suggest https://github.com/alexmojaki/cheap_repr to print truncated reprs without losing too much information.

This also relates to #14

Allign for line number

Linenumber have different lenght, which is not considered now and destroy the formatting

Automatic injection of frosch in python interpreter

Either write a script, that hooks itself into the python interpreter so frosch is always executed or find another way to its
auto hooking by simply pip installing frosch

Testing source input with hypothesmith

Experiment with using hypothesmith for some experimental "penetration" tests, to see if frosch crashes.

Parsing error when exception occurs inside except handler

Example script:

from frosch import hook

hook()

try:
    1/0
except Exceptoin:
    pass

Output:

Error in sys.excepthook:
Traceback (most recent call last):
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/yapf/yapflib/pytree_utils.py", line 115, in ParseCodeToTree
    tree = parser_driver.parse_string(code, debug=False)
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/lib2to3/pgen2/driver.py", line 103, in parse_string
    return self.parse_tokens(tokens, debug)
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/lib2to3/pgen2/driver.py", line 71, in parse_tokens
    if p.addtoken(type, value, (prefix, start)):
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/lib2to3/pgen2/parse.py", line 162, in addtoken
    raise ParseError("bad input", type, value, context)
lib2to3.pgen2.parse.ParseError: bad input: type=1, value='except', context=('', (1, 0))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/yapf/yapflib/pytree_utils.py", line 121, in ParseCodeToTree
    tree = parser_driver.parse_string(code, debug=False)
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/lib2to3/pgen2/driver.py", line 103, in parse_string
    return self.parse_tokens(tokens, debug)
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/lib2to3/pgen2/driver.py", line 71, in parse_tokens
    if p.addtoken(type, value, (prefix, start)):
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/lib2to3/pgen2/parse.py", line 162, in addtoken
    raise ParseError("bad input", type, value, context)
lib2to3.pgen2.parse.ParseError: bad input: type=1, value='except', context=('', (1, 0))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/frosch/parser.py", line 180, in format_line
    formatted_line, _ =  FormatCode(line)
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/yapf/yapflib/yapf_api.py", line 147, in FormatCode
    tree = pytree_utils.ParseCodeToTree(unformatted_source)
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/yapf/yapflib/pytree_utils.py", line 127, in ParseCodeToTree
    raise e
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/yapf/yapflib/pytree_utils.py", line 125, in ParseCodeToTree
    ast.parse(code)
  File "/home/alex/.pyenv/versions/3.8.0/lib/python3.8/ast.py", line 47, in parse
    return compile(source, filename, mode, flags,
  File "<unknown>", line 1
    except Exceptoin :
    ^
SyntaxError: invalid syntax

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/alex/.cache/pypoetry/virtualenvs/book-E12DIahb-py3.8/lib/python3.8/site-packages/frosch/parser.py", line 196, in format_line
    raise ParseError("Could not parse line: {}".format(line)) from error
frosch.parser.ParseError: Could not parse line: except Exceptoin :

Original exception was:
Traceback (most recent call last):
  File "/home/alex/.config/JetBrains/PyCharm2020.3/scratches/scratch_1099.py", line 6, in <module>
    1/0
ZeroDivisionError: division by zero

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/alex/.config/JetBrains/PyCharm2020.3/scratches/scratch_1099.py", line 7, in <module>
    except Exceptoin:
NameError: name 'Exceptoin' is not defined

Doesn't work with multiline statements

Example script:

import frosch

frosch.hook()

x = (
  1 +
  "2"
)

Output:

Error in sys.excepthook:
Traceback (most recent call last):
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/frosch/frosch.py", line 47, in pytrace_excepthook
    names = parse_error_line(last_stack.line)
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/frosch/frosch.py", line 71, in parse_error_line
    tree = ast.parse(line)
  File "/usr/lib/python3.8/ast.py", line 47, in parse
    return compile(source, filename, mode, flags,
  File "<unknown>", line 1
    1 +
      ^
SyntaxError: invalid syntax

Original exception was:
Traceback (most recent call last):
  File "main.py", line 6, in <module>
    1 +
TypeError: unsupported operand type(s) for +: 'int' and 'str'

In general you may be interested in using https://github.com/alexmojaki/stack_data as part of this library

Support for IPython / Jupyter Notebook

array/tensor refinement

Hi,

Great project!
I think it would be relatively easy to make it even more awesome. :)

Many people deal with data science nowadays, and there
tensor properties, like shape, are more frequent source of error
than e.g. values in the array.

Currently arrays / tensors are displayed like this:

x: ndarray = array([ 1, 2...  ])
y: Tensor = tensor([ 1, 2...  ])

I would recommend at least two extra piece of information: shape and dtype, something like this:

x: ndarray[float64] (200,300) = array([ 1, 2...  ])

Or maybe:

x: Tensor, cpu/f32, 2d, (200,300) = array([ 1, 2...  ])

Maybe it would be even nicer to make the hook configurable, like:

import frosch
frosch.hook(array_shapes=True, array_types=True, array_device=False, requires_grad=True, array_values=False)

Of course, you can always add almost infinite useful tricks to numpy/pytorch, e.g.
isnan/isinf, so here is a final variant to consider:

x: Tensor, type=cpu/f32, grad=F, shape=(200,300), inf:0 NaN:0, min: -3, max:1e8, mean: 0.0001

Of course, these might take time to print, but if it is configurable, then it doesn't really matter.

Another way, which would be also cool, is having a configurable extra printer.
E.g.

import frosch
import my_tricks
frosch.hook( (np.ndarray, my_tricks.numpy_printer) )

In this case anybody could customize their own printer, and add an extra representation.
I imagine the print like this:

x: ndarray "Whatever string the function returned"

And the function interface would be:

        extra_info = ....
        return extra_info + default_printers_text

This might mess up colors, i see it.

There could be other ways to define values, like returning a dictionary of texts,
like "pre_type", "post_type", "pre_value", "post_value" , and format them something like this:

f'{pre_type}{type}{post_type} = {pre_value}{value}{post_value}

In this way you don't have much issues with the coloring, it is still controlled by you,
but people could customize the printer.

Which one to choose?
Well, i like my own printers, e.g. testing for NaNs, but for most people a reasonable built-in would be the easiest,
maybe with some verbosity parameter in the hook installer.

But once again: it is a great project already, and much more readable than any default.
I really appreciate your efforts, and even if you don't incorporate anything from the above,
it is already a lot of help for lot of people. But maybe the above could make it even better. :)

try:
    foo()
except SomeError as e:
    frosch.print(e)

to get the nice frosch output while letting my code potentially survive. I suspect it's probably possible, but just not documented?

Gitpod

For fast testing and show off

Get IndexError when pressing CTRL-C

When I interrupt the keyboard (ctrl + c), I get

Error in sys.excepthook:
Traceback (most recent call last):
  File "REDACTED/.venv/lib/python3.6/site-packages/frosch/frosch.py", line 56, in pytrace_excepthook
    parsed_exception = ParsedException(traceback_, error_type, error_message)
  File "REDACTED/.venv/lib/python3.6/site-packages/frosch/parser.py", line 68, in __init__
    self.last_stack = traceback.extract_tb(traceback_)[-1]
IndexError: list index out of range

Original exception was:
KeyboardInterrupt

hallerpatrick / frosch Goto Github PK

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