pysnooper/tracer.py", line 75, in get_source_from_frame raise NotImplementedError

When I ran a simple script:

import pysnooper
import numpy as np

@pysnooper.snoop()
def multi_matmul(times):
    x = np.random.rand(2,2)
    w = np.random.rand(2,2)
    
    for i in range(times):
        x = np.matmul(x,w)
    return x

multi_matmul(3)

The error happened:

Starting var:.. times = 3
Traceback (most recent call last):
  File "<tmp 1>", line 14, in <module>
    multi_matmul(3)
  File "</usr/local/lib/python3.6/dist-packages/decorator.py:decorator-gen-121>", line 2, in multi_matmul
  File "/usr/local/lib/python3.6/dist-packages/pysnooper/pysnooper.py", line 72, in decorate
    return function(*args, **kwargs)
  File "<tmp 1>", line 4, in multi_matmul
    @pysnooper.snoop()
  File "/usr/local/lib/python3.6/dist-packages/pysnooper/tracer.py", line 182, in trace
    source_line = get_source_from_frame(frame)[frame.f_lineno - 1]
  File "/usr/local/lib/python3.6/dist-packages/pysnooper/tracer.py", line 75, in get_source_from_frame
    raise NotImplementedError
NotImplementedError

[cool-RR]

Ah, I think I get it. Are you using PySnooper on code that you’re typing in the interactive shell?

[cool-RR]

I think you forgot to upgrade PySnooper.

On Thu, Apr 25, 2019, 04:31 周文青 [e-mail] wrote:

OS: Ubuntu 18.04 python:

@cool-RR https://github.com/cool-RR I tried in ipython and qtconsole, it didn’t work. Errors shows below:

Jupyter QtConsole 4.4.3 Python 3.6.8 (default, Jan 14 2019, 11:02:34) Type ‘copyright’, ‘credits’ or ‘license’ for more information IPython 7.4.0 – An enhanced Interactive Python. Type ‘?’ for help.

In [1]: import pysnooper …: …: @pysnooper.snoop() …: def number_to_bits(number): …: if number: …: bits = [] …: while number: …: number, remainder = divmod(number, 2) …: bits.insert(0, remainder) …: return bits …: else: …: return [0] …: …: number_to_bits(6) Starting var:… number = 6

NotImplementedError Traceback (most recent call last) <ipython-input-1-d9086aeb58cb> in <module> 12 return [0] 13 —> 14 number_to_bits(6)

</usr/local/lib/python3.6/dist-packages/decorator.py:decorator-gen-127> in number_to_bits(number)

/usr/local/lib/python3.6/dist-packages/pysnooper/pysnooper.py in decorate(function, *args, **kwargs) 70 write=write, variables=variables, 71 depth=depth, prefix=prefix): —> 72 return function(*args, **kwargs) 73 74 return decorate

<ipython-input-1-d9086aeb58cb> in number_to_bits(number) 1 import pysnooper 2 ----> 3 @pysnooper.snoop() 4 def number_to_bits(number): 5 if number:

/usr/local/lib/python3.6/dist-packages/pysnooper/tracer.py in trace(self, frame, event, arg) 180 181 now_string = datetime_module.datetime.now().time().isoformat() –> 182 source_line = get_source_from_frame(frame)[frame.f_lineno - 1] 183 self.write('{indent}{now_string} {event:9} ’ 184 ‘{frame.f_lineno:4} {source_line}’.format(**locals()))

/usr/local/lib/python3.6/dist-packages/pysnooper/tracer.py in get_source_from_frame(frame) 73 pass 74 if source is None: —> 75 raise NotImplementedError 76 77 # If we just read the source from a file, or if the loader did not

NotImplementedError:

In [2]:

And about the first problem, I ran the code in pyzo and didn’t save the file before. When I saved the file it worked. It’s strange!

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