make python 3.8 happy

Author: jokester

beangulp/__init__.py

@@ -18,6 +18,7 @@
 
 from beancount import loader
 from typing import Optional
+from typing import List
 
 from beangulp import archive
 from beangulp import cache  # noqa: F401
@@ -81,7 +82,7 @@ def _extract(
     # Load the ledger, if one is specified.
     existing_entries = loader.load_file(existing)[0] if existing else []
 
-    extracted: list[extract.ExtractedEntry] = []
+    extracted: List[extract.ExtractedEntry] = []
     for filename in _walk(src, log):
         with errors:
             importer = identify.identify(ctx.importers, filename)

beangulp/extract.py

@@ -11,6 +11,7 @@
 from typing import Callable
 from typing import TYPE_CHECKING
 from typing import Tuple
+from typing import List
 
 from beancount.core import data
 from beancount.parser import printer
@@ -32,7 +33,9 @@
 ExtractedEntry = Tuple[str, data.Entries, data.Account, "Importer"]
 
 
-def extract_from_file(importer: 'Importer', filename: str, existing_entries: data.Directives) -> data.Entries:
+def extract_from_file(
+    importer: "Importer", filename: str, existing_entries: "data.Directives"
+) -> data.Entries:
     """Import entries from a document.
 
     Args:
@@ -57,7 +60,7 @@ def extract_from_file(importer: 'Importer', filename: str, existing_entries: dat
     return entries
 
 
-def sort_extracted_entries(extracted: list[ExtractedEntry]) -> None:
+def sort_extracted_entries(extracted: List[ExtractedEntry]) -> None:
     """Sort the extraxted entries.
 
     Sort extracged entries, grouped by source document, in the order
@@ -110,7 +113,7 @@ def key(element: ExtractedEntry):
     extracted.sort(key=key)
 
 
-def find_duplicate_entries(extracted: list[ExtractedEntry], existing: data.Entries) -> list[ExtractedEntry]:
+def find_duplicate_entries(extracted: List[ExtractedEntry], existing: data.Entries) -> List[ExtractedEntry]:
     """Flag potentially duplicate entries.
 
     Args:
@@ -204,7 +207,7 @@ def entries_date_window_iterator(date):
                 entry.meta[DUPLICATE] = target
 
 
-def print_extracted_entries(extracted: list[ExtractedEntry], output: io.TextIOBase) -> None:
+def print_extracted_entries(extracted: List[ExtractedEntry], output: io.TextIOBase) -> None:
     """Print extracted entries.
 
     Entries marked as duplicates are printed as comments.

beangulp/identify.py

@@ -1,6 +1,7 @@
 __copyright__ = "Copyright (C) 2016  Martin Blais"
 __license__ = "GNU GPLv2"
 
+from typing import List
 from beangulp.exceptions import Error
 from beangulp.importer import Importer
 
@@ -11,7 +12,7 @@
 FILE_TOO_LARGE_THRESHOLD = 8*1024*1024
 
 
-def identify(importers: list[Importer], filepath: str):
+def identify(importers: List[Importer], filepath: str):
     """Identify the correct importer to handle a document.
 
     Args: