ValueError: AST node line range is not valid

[wohltat]

Trying to run any of the Pygame Zero examples fails with

PROBLEM IN THONNY'S BACK-END: Exception while handling 'Run' (ValueError: AST node line range (1000000, 1) is not valid).
See Thonny's backend.log for more info.

Process ended with exit code 1.

The backend log seems to contain nothing obvious:

13:41:14.266 [MainThread] INFO    thonny: Thonny version: 4.1.4
13:41:14.267 [MainThread] INFO    thonny: cwd: /home/username/.config/Thonny/leave_this_empty
13:41:14.267 [MainThread] INFO    thonny: original argv: ['/home/username/Documents/programming_test/pygamezero/pgzero/examples/flappybird/env/bin/python3', '-u', '-B', '/usr/lib/python3.11/site-packages/thonny/plugins/cpython_backend/cp_launcher.py', '/home/username/Documents/programming_test/pygamezero/pgzero/examples/basic', "{'run.warn_module_shadowing': True}"]
13:41:14.267 [MainThread] INFO    thonny: sys.executable: /home/username/Documents/programming_test/pygamezero/pgzero/examples/flappybird/env/bin/python3
13:41:14.267 [MainThread] INFO    thonny: sys.argv: ['/usr/lib/python3.11/site-packages/thonny/plugins/cpython_backend/cp_launcher.py', '/home/username/Documents/programming_test/pygamezero/pgzero/examples/basic', "{'run.warn_module_shadowing': True}"]
13:41:14.267 [MainThread] INFO    thonny: sys.path: ['/usr/lib/python3.11/site-packages', '/usr/lib/python3.11/site-packages/thonny/plugins/cpython_backend', '/usr/lib/python311.zip', '/usr/lib/python3.11', '/usr/lib/python3.11/lib-dynload', '/home/username/Documents/programming_test/pygamezero/pgzero/examples/flappybird/env/lib/python3.11/site-packages']
13:41:14.267 [MainThread] INFO    thonny: sys.flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=1, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0, dev_mode=False, utf8_mode=0, warn_default_encoding=0, safe_path=False, int_max_str_digits=-1)
13:41:14.267 [MainThread] INFO    thonny: TIME/MODS 0.015 Before constructing backend (+28 modules)
13:41:14.267 [MainThread] INFO    thonny: NEW MODS ['_heapq', '_locale', '_posixsubprocess', '_queue', 'encodings.ascii', 'errno', 'faulthandler', 'fcntl', 'fnmatch', 'heapq', 'importlib._abc', 'importlib.util', 'ipaddress', 'locale', 'math', 'ntpath', 'pathlib', 'queue', 'select', 'selectors', 'signal', 'subprocess', 'thonny.backend', 'thonny.plugins', 'thonny.plugins.cpython_backend', 'thonny.plugins.cpython_backend.cp_back', 'urllib', 'urllib.parse']
13:41:14.267 [MainThread] INFO    thonny: TIME/MODS 0.000 Before MainBackend 
13:41:14.268 [MainThread] INFO    thonny: TIME/MODS 0.000 After MainBackend 
13:41:14.278 [MainThread] INFO    thonny.backend: Loading plugins
13:41:14.278 [MainThread] INFO    thonny: TIME/MODS 0.011 Before loading plugins (+6 modules)
13:41:14.278 [MainThread] INFO    thonny: NEW MODS ['__future__', '_sysconfigdata__linux_x86_64-linux-gnu', 'pkgutil', 'platform', 'pydoc', 'sysconfig']
13:41:14.279 [MainThread] INFO    thonny.common: Using THONNY_FRONTEND_SYS_PATH ['/usr/bin', '/usr/lib/python311.zip', '/usr/lib/python3.11', '/usr/lib/python3.11/lib-dynload', '/home/username/.local/lib/python3.11/site-packages', '/usr/lib/python3.11/site-packages', '/home/username/.config/Thonny/plugins/lib/python3.11/site-packages']
13:41:14.280 [MainThread] INFO    thonny.backend: Loading plugin 'thonny.plugins.backend.birdseye_backend'
13:41:14.280 [MainThread] INFO    thonny.backend: Loading plugin 'thonny.plugins.backend.dock_user_windows_backend'
13:41:14.281 [MainThread] INFO    thonny.backend: Loading plugin 'thonny.plugins.backend.flask_backend'
13:41:14.281 [MainThread] INFO    thonny.backend: Loading plugin 'thonny.plugins.backend.matplotlib_backend'
13:41:14.281 [MainThread] INFO    thonny.backend: Loading plugin 'thonny.plugins.backend.pgzero_backend'
13:41:14.287 [MainThread] INFO    thonny: TIME/MODS 0.009 After loading plugins (+6 modules)
13:41:14.288 [MainThread] INFO    thonny: NEW MODS ['thonny.plugins.backend', 'thonny.plugins.backend.birdseye_backend', 'thonny.plugins.backend.dock_user_windows_backend', 'thonny.plugins.backend.flask_backend', 'thonny.plugins.backend.matplotlib_backend', 'thonny.plugins.backend.pgzero_backend']
13:41:14.292 [MainThread] INFO    thonny: TIME/MODS 0.005 Beginning of mainloop 
13:41:14.293 [MainThread] INFO    thonny: TIME/MODS 0.001 Sending message ToplevelResponse 
13:41:14.293 [MainThread] INFO    thonny.backend: Loading Jedi
13:41:14.293 [MainThread] INFO    thonny: TIME/MODS 0.000 Before loading Jedi 
13:41:14.294 [MainThread] INFO    thonny.common: Using THONNY_FRONTEND_SYS_PATH ['/usr/bin', '/usr/lib/python311.zip', '/usr/lib/python3.11', '/usr/lib/python3.11/lib-dynload', '/home/username/.local/lib/python3.11/site-packages', '/usr/lib/python3.11/site-packages', '/home/username/.config/Thonny/plugins/lib/python3.11/site-packages']
13:41:14.375 [MainThread] INFO    thonny: TIME/MODS 0.082 After loading Jedi (+134 modules)
13:41:14.376 [MainThread] INFO    thonny: NEW MODS ['_blake2', '_bz2', '_compat_pickle', '_compression', '_ctypes', '_hashlib', '_json', '_lzma', '_pickle', '_struct', 'binascii', 'bz2', 'colorama', 'colorama.ansi', 'colorama.ansitowin32', 'colorama.initialise', 'colorama.win32', 'colorama.winterm', 'ctypes', 'ctypes._endian', 'difflib', 'filecmp', 'gc', 'hashlib', 'jedi', 'jedi._compatibility', 'jedi.api', 'jedi.api.classes', 'jedi.api.completion', 'jedi.api.completion_cache', 'jedi.api.environment', 'jedi.api.errors', 'jedi.api.exceptions', 'jedi.api.file_name', 'jedi.api.helpers', 'jedi.api.interpreter', 'jedi.api.keywords', 'jedi.api.project', 'jedi.api.refactoring', 'jedi.api.refactoring.extract', 'jedi.api.strings', 'jedi.cache', 'jedi.common', 'jedi.debug', 'jedi.file_io', 'jedi.inference', 'jedi.inference.analysis', 'jedi.inference.arguments', 'jedi.inference.base_value', 'jedi.inference.cache', 'jedi.inference.compiled', 'jedi.inference.compiled.access', 'jedi.inference.compiled.getattr_static', 'jedi.inference.compiled.mixed', 'jedi.inference.compiled.subprocess', 'jedi.inference.compiled.subprocess.functions', 'jedi.inference.compiled.value', 'jedi.inference.context', 'jedi.inference.docstring_utils', 'jedi.inference.docstrings', 'jedi.inference.filters', 'jedi.inference.flow_analysis', 'jedi.inference.gradual', 'jedi.inference.gradual.annotation', 'jedi.inference.gradual.base', 'jedi.inference.gradual.conversion', 'jedi.inference.gradual.generics', 'jedi.inference.gradual.stub_value', 'jedi.inference.gradual.type_var', 'jedi.inference.gradual.typeshed', 'jedi.inference.gradual.typing', 'jedi.inference.gradual.utils', 'jedi.inference.helpers', 'jedi.inference.imports', 'jedi.inference.lazy_value', 'jedi.inference.names', 'jedi.inference.param', 'jedi.inference.parser_cache', 'jedi.inference.recursion', 'jedi.inference.references', 'jedi.inference.signature', 'jedi.inference.syntax_tree', 'jedi.inference.sys_path', 'jedi.inference.utils', 'jedi.inference.value', 'jedi.inference.value.decorator', 'jedi.inference.value.dynamic_arrays', 'jedi.inference.value.function', 'jedi.inference.value.instance', 'jedi.inference.value.iterable', 'jedi.inference.value.klass', 'jedi.inference.value.module', 'jedi.inference.value.namespace', 'jedi.parser_utils', 'jedi.plugins', 'jedi.plugins.django', 'jedi.plugins.flask', 'jedi.plugins.pytest', 'jedi.plugins.registry', 'jedi.plugins.stdlib', 'jedi.settings', 'json', 'json.decoder', 'json.encoder', 'json.scanner', 'lzma', 'parso', 'parso._compatibility', 'parso.cache', 'parso.file_io', 'parso.grammar', 'parso.normalizer', 'parso.parser', 'parso.pgen2', 'parso.pgen2.generator', 'parso.pgen2.grammar_parser', 'parso.python', 'parso.python.diff', 'parso.python.errors', 'parso.python.parser', 'parso.python.pep8', 'parso.python.prefix', 'parso.python.token', 'parso.python.tokenize', 'parso.python.tree', 'parso.tree', 'parso.utils', 'pickle', 'pydoc_data', 'pydoc_data.topics', 'shutil', 'struct', 'zipfile', 'zlib']

Before I created a new Interpreter with a new environment folder and installed pgzero from 'Manage packages...'.

---

Thonny 4.1.4
Python 3.11.8

[wohltat]

This seems to happen only in 'Pygame Zero mode'.

If i add import pgzrun and pgzrun.go() some of them (circle.py) seems to run.
Others (asteroids.py) need more configuration and fail with other error messages.
For example:

NameError: name 'storage' is not defined

All examples work outside of Thonny when i run them via pgzrun but also not if i run them with python.
That seems to be an pgzero issue.

[wohltat]

The error NameError: name 'storage' is not defined resulted from different pgzero versions.

pip:
pgzero.version = '1.2.1'

github:
pgzero.version = '1.3.dev0'

After installing pgzero outside of Thonny, i could use version '1.3.dev0' in Thonny.

Now i can workaround the initial issue and create a runner script like run_flappybird.py and use it instead of pgzrun.

import pgzero.runner

pgzero.runner.load_and_run('flappybird.py')

[wohltat]

It seems to be still broken in the current version Thonny 5.0.0b1-dev.

[wohltat]

Adding end_lineno with the same value as lineno in thonny/plugins/backend/pgzero_backend.py gets rid of the error message.

go.lineno = 1000000
go.end_lineno = 1000000

I guess this works as it was intended in Thonny, i.e. adding import pgzrun at the beginning and pgzrun.go() at the end, like it is described in the docs (https://pygame-zero.readthedocs.io/en/stable/ide-mode.html).

The catch is that this is not enough as i described above.

[aivarannamaa]

Thank you for this thorough report! It looks like recent Python versions have more strict requirements about AST nodes. I'll fix it later.