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Alex Hall 42afb17e36 (core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling ... Summary: Python 2 only needs to be supported for the sake of old documents and formulas. This doesn't apply to the separate sandboxes that parse files for imports. Using Python 3 only allows using newer libraries and library versions. In particular, the latest version of openpyxl doesn't support Python 2. This will also make it easier to make other similar changes in the future, such as replacing messytables with a modern library. See https://grist.slack.com/archives/C0234CPPXPA/p1661261829343999?thread_ts=1661260442.837959&cid=C0234CPPXPA The latest openpyxl is better at handling a particular edge case with broken dates in Excel, but still doesn't quite do what we want, so we monkeypatch it. Discussion: https://grist.slack.com/archives/C02EGJ1FUCV/p1661440851911869?thread_ts=1661154219.515549&cid=C02EGJ1FUCV Setting `preferredPythonVersion` to '3' in SafePythonComponent ensures that JS always creates import sandboxes that use Python 3. Within Python, a module used by all imports will raise an error in Python 2. Python unit tests of imports are now only run in Python 3, using the `load_tests` protocol of `unittest`. Test Plan: Mostly existing tests. Added another strange date to the Excel fixture. Reviewers: dsagal Reviewed By: dsagal Subscribers: dsagal Differential Revision: https://phab.getgrist.com/D3606		2 years ago
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fixtures	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
__init__.py	(core) Switch excel import parsing from messytables+xlrd to openpyxl, and ignore empty rows	2 years ago
import_csv.py	(core) Switch excel import parsing from messytables+xlrd to openpyxl, and ignore empty rows	2 years ago
import_csv_test.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
import_json.py	(core) When importing JSON, create columns of type Numeric rather than Int	2 years ago
import_json_test.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
import_utils.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
import_xls.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
import_xls_test.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
messytables_test.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago
register.py	(core) Switch excel import parsing from messytables+xlrd to openpyxl, and ignore empty rows	2 years ago
test_imports.py	(core) Run and test imports only in Python 3, upgrade openpyxl, fix weird date handling	2 years ago