connection lost at receive:855

[maho]

Tried to try wdb, and did roughly what is described in readme, thus:

1. installed virtualenv
2. pip installed wdb and wdb.server
3. ran wdb.server.py in one terminal
4. created file ee.py with following content:

import wdb
wdb.set_trace()
print("foo")
print("jbar")

5. tried to debug it, in another terminal:

(venv) lukasz.mach@mac ~/tmp
 $ python ee.py
2019-08-16 15:18:38,289 wdb Connection lost at receive:855
Traceback (most recent call last):
  File "ee.py", line 2, in <module>
    wdb.set_trace()
  File "/Users/lukasz.mach/tmp/venv/lib/python3.5/site-packages/wdb/__init__.py", line 1086, in set_trace
    wdb = Wdb.get(server=server, port=port)
  File "/Users/lukasz.mach/tmp/venv/lib/python3.5/site-packages/wdb/__init__.py", line 118, in get
    Wdb.__init__(wdb, server, port, force_uuid)
  File "/Users/lukasz.mach/tmp/venv/lib/python3.5/site-packages/wdb/__init__.py", line 169, in __init__
    self.get_breakpoints()
  File "/Users/lukasz.mach/tmp/venv/lib/python3.5/site-packages/wdb/__init__.py", line 268, in get_breakpoints
    breaks = loads(breaks or '{}')
  File "/Users/lukasz.mach/.pyenv/versions/3.5.6/lib/python3.5/json/__init__.py", line 319, in loads
    return _default_decoder.decode(s)
  File "/Users/lukasz.mach/.pyenv/versions/3.5.6/lib/python3.5/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/Users/lukasz.mach/.pyenv/versions/3.5.6/lib/python3.5/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
(venv) lukasz.mach@mac ~/tmp

Any idea what I do wrong?

System: Macos Mojave, pyenv, python 3.5.6 (same effect in python 3.7.x)

[yucer]

No idea, but you can always use a previous version.

I found that the problem seems to be in the server side.

Try to use version 3.1.10 of the server in a separate virtual environment. For example:

mkvirtualenv -p `which python3` wdb_server_3_1_10
pip install wdb.server.py == 3.1.10
wdb.server.py

It seems to work with the last version of the client.

mkvirtualenv -p `which python3` wdb_ee
pip install wdb
python ee.py

You can try with newer versions of the server, until find which is the first one that broke.

It is not a good idea to install server and client in the same environment because the server (wdb.server) uses a lot of dependencies, and you are supposed not to change too much the environment you are going to debug. The client (wdb) includes the minimal dependencies.

[maho]

indeed - 3.1.10 works.

3.2.0 .. 3.2.5 - wdb.server.py cannot even start, following traceback:

Traceback (most recent call last):
  File "venv/bin/wdb.server.py", line 10, in <module>
    from wdb_server import server
  File "/private/tmp/venv/lib/python3.7/site-packages/wdb_server/__init__.py", line 374, in <module>
    raise_error=False
TypeError: fetch() got multiple values for argument 'raise_error'

[paradoxxxzero]

Did you try the last wdb version (3.2.6)? It should be fixed.

[maho]

With wdb 3.2.6 I have the same error as reported (JsonDEcodeError) on cli side.

I didn't mention it, because I thought that it's version I reported about.

[paradoxxxzero]

And with 3.3.0?

[maho]

and with 3.3.0 works perfect. Thank you!