Sequence index is not an int, slice, or instance with __index__ (with scipy.fft)

[tschaub]

Steps to reproduce

test.py

import numpy as np
from scipy import fft

def check(image_product):
    cross_correlation = fft.ifftn(image_product)
    maxima = np.unravel_index(np.argmax(np.abs(cross_correlation)), cross_correlation.shape)

    return cross_correlation[maxima]

pylint test.py --errors-only

Current behavior

************* Module test
test.py:6:68: E1101: Instance of 'tuple' has no 'shape' member (no-member)
test.py:8:11: E1126: Sequence index is not an int, slice, or instance with __index__ (invalid-sequence-index)

Expected behavior

No errors.

pylint --version output

pylint 2.6.0
astroid 2.4.2
Python 3.8.5 (default, Jul 28 2020, 12:59:40)
[GCC 9.3.0]

[cjmayo]

Also with:

Steps to reproduce

type.py

types = ["test type"]


class Example:
    def __init__(self, type):
        self.type = types[type]

Current behavior

************* Module type
type.py:6:20: E1126: Sequence index is not an int, slice, or instance with __index__ (invalid-sequence-index)

pylint --version output

pylint 2.7.2
astroid 2.5.1
Python 3.9.2
[GCC 9.3.0]

[hippo91]

@cjmayo thanks for your message but it is not related to the original one. The issue noted by @tschaub is directly linked to the use of the numpy module.

[cjmayo]

@cjmayo thanks for your message but it is not related to the original one. The issue noted by @tschaub is directly linked to the use of the numpy module.

Thanks, and mine appears to be fixed in:
pylint 2.9.3
astroid 2.6.2

[jrom99]

Hello, this also happens in gspread, I tried to make a minimal reproducible example, but I'm not sure if I did it right.

Steps to reproduce

import os
from pathlib import Path

import gspread
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow


def get_creds(scopes: list[str], creds_file: Path, token_file: Path):
    creds = None
    if token_file.is_file():
        creds = Credentials.from_authorized_user_file(token_file, scopes)

    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        elif creds_file.is_file():
            flow = InstalledAppFlow.from_client_secrets_file(
                creds_file, scopes)
            creds = flow.run_local_server(port=0)
        else:
            raise FileNotFoundError(creds_file)
        with open(token_file, "w", encoding="utf-8") as token:
            token.write(creds.to_json())
    return creds


GMAIL_CREDS = Path(os.environ["GMAIL_CREDS"])  # client secrets file
GMAIL_TOKEN = Path("token.json")
SHEETS_ID = os.environ["GSPREADSHEET"]   # Google spreadsheet key 
credentials = get_creds(
    ['https://www.googleapis.com/auth/gmail.send'], GMAIL_CREDS, GMAIL_TOKEN)
service = gspread.authorize(credentials=credentials)


try:
    spreadsheet = service.open_by_key(SHEETS_ID)
except gspread.exceptions.APIError as err:
    if err.args[0]['status'] == 'PERMISSION_DENIED':  # offending line
        raise PermissionError(
            f"You don't have access to {SHEETS_ID!r}") from None
    raise

pylint test.py --errors-only

Current behaviour

************* Module test
test.py:40:7: E1126: Sequence index is not an int, slice, or instance with __index__ (invalid-sequence-index)

pylint --version output
pylint 2.12.2
astroid 2.9.2
Python 3.9.7 (default, Sep 10 2021, 14:59:43)
[GCC 11.2.0]

I tried the following:

error_data: dict[str, str] = err.args[0]
if error_data['status'] == 'PERMISSION_DENIED':
  ...

But pylint still sees error_data['status'] as an error.