Switch from pytz to dateutil (hyperledger#3012)

* Switch from pytz to dateutil

Signed-off-by: jamshale <jamiehalebc@gmail.com>

---------

Signed-off-by: jamshale <jamiehalebc@gmail.com>
Signed-off-by: EmadAnwer <emadanwer.official@gmail.com>

aries_cloudagent/protocols/present_proof/dif/pres_exch_handler.py

@@ -13,7 +13,7 @@
 from datetime import datetime
 from typing import Dict, List, Optional, Sequence, Tuple, Union
 
-import pytz
+from dateutil import tz
 from dateutil.parser import ParserError
 from dateutil.parser import parse as dateutil_parser
 from jsonpath_ng import parse
@@ -613,10 +613,9 @@ def string_to_timezone_aware_datetime(self, datetime_str: str) -> datetime:
         if PYTZ_TIMEZONE_PATTERN.search(datetime_str):
             result = PYTZ_TIMEZONE_PATTERN.search(datetime_str).group(1)
             datetime_str = datetime_str.replace(result, "")
-            return dateutil_parser(datetime_str).replace(tzinfo=pytz.timezone(result))
+            return dateutil_parser(datetime_str).replace(tzinfo=tz.gettz(result))
         else:
-            utc = pytz.UTC
-            return dateutil_parser(datetime_str).replace(tzinfo=utc)
+            return dateutil_parser(datetime_str).replace(tzinfo=tz.UTC)
 
     def validate_patch(self, to_check: any, _filter: Filter) -> bool:
         """Apply filter on match_value.

aries_cloudagent/vc/ld_proofs/suites/bbs_bls_signature_2020.py

@@ -1,17 +1,16 @@
 """BbsBlsSignature2020 class."""
 
-from datetime import datetime, timezone
-from pytz import utc
+from datetime import datetime
 from typing import List, Optional, Union
 
-from ....wallet.util import b64_to_bytes, bytes_to_b64
+from dateutil import tz
 
+from ....wallet.util import b64_to_bytes, bytes_to_b64
 from ..crypto import _KeyPair as KeyPair
 from ..document_loader import DocumentLoaderMethod
 from ..error import LinkedDataProofException
 from ..purposes import _ProofPurpose as ProofPurpose
 from ..validation_result import ProofResult
-
 from .bbs_bls_signature_2020_base import BbsBlsSignature2020Base
 
 
@@ -60,9 +59,9 @@ async def create_proof(
         # Set created if not already set
         if not proof.get("created"):
             # Use class date, or now
-            date = self.date or datetime.now(timezone.utc)
+            date = self.date or datetime.now(tz.UTC)
             if not date.tzinfo:
-                date = utc.localize(date)
+                date = date.replace(tzinfo=tz.UTC)
             proof["created"] = date.isoformat(timespec="seconds")
 
         # Allow purpose to update the proof; the `proof` is in the

aries_cloudagent/vc/ld_proofs/suites/linked_data_signature.py

@@ -1,17 +1,17 @@
 """Linked Data Signature class."""
 
-from abc import abstractmethod, ABCMeta
+from abc import ABCMeta, abstractmethod
 from datetime import datetime, timezone
 from hashlib import sha256
-from pytz import utc
 from typing import Optional, Union
 
+from dateutil import tz
+
 from ..constants import SECURITY_CONTEXT_URL
 from ..document_loader import DocumentLoaderMethod
 from ..error import LinkedDataProofException
 from ..purposes import _ProofPurpose as ProofPurpose
 from ..validation_result import ProofResult
-
 from .linked_data_proof import LinkedDataProof
 
 
@@ -99,7 +99,7 @@ async def create_proof(
             # Use class date, or now
             date = self.date or datetime.now(timezone.utc)
             if not date.tzinfo:
-                date = utc.localize(date)
+                date = date.replace(tzinfo=tz.UTC)
             proof["created"] = date.isoformat(timespec="seconds")
 
         # Allow purpose to update the proof; the `proof` is in the

aries_cloudagent/vc/vc_ld/models/credential.py

@@ -3,18 +3,17 @@
 from datetime import datetime
 from typing import List, Optional, Union
 
-from pytz import utc
-
+from dateutil import tz
 from marshmallow import INCLUDE, ValidationError, fields, post_dump
 
 from ....messaging.models.base import BaseModel, BaseModelSchema
 from ....messaging.valid import (
     CREDENTIAL_CONTEXT_EXAMPLE,
     CREDENTIAL_CONTEXT_VALIDATE,
-    CREDENTIAL_SUBJECT_EXAMPLE,
-    CREDENTIAL_SUBJECT_VALIDATE,
     CREDENTIAL_STATUS_EXAMPLE,
     CREDENTIAL_STATUS_VALIDATE,
+    CREDENTIAL_SUBJECT_EXAMPLE,
+    CREDENTIAL_SUBJECT_VALIDATE,
     CREDENTIAL_TYPE_EXAMPLE,
     CREDENTIAL_TYPE_VALIDATE,
     RFC3339_DATETIME_EXAMPLE,
@@ -176,7 +175,7 @@ def issuance_date(self, date: Union[str, datetime]):
         """Setter for issuance date."""
         if isinstance(date, datetime):
             if not date.tzinfo:
-                date = utc.localize(date)
+                date = date.replace(tzinfo=tz.UTC)
             date = date.isoformat()
 
         self._issuance_date = date
@@ -191,7 +190,7 @@ def expiration_date(self, date: Union[str, datetime, None]):
         """Setter for expiration date."""
         if isinstance(date, datetime):
             if not date.tzinfo:
-                date = utc.localize(date)
+                date = date.replace(tzinfo=tz.UTC)
             date = date.isoformat()
 
         self._expiration_date = date

docs/conf.py

@@ -18,48 +18,47 @@
 sys.path.insert(0, os.path.abspath(".."))
 
 autodoc_mock_imports = [
-    "setup",
-    "nacl",
-    "indy",
+    "aiohttp_apispec",
     "aiohttp_cors",
     "aiohttp",
-    "aiohttp_apispec",
-    "base58",
-    "msgpack",
-    "pytest",
+    "aioredis",
+    "anoncreds",
+    "aries_askar",
+    "async_timeout",
     "asynctest",
-    "markdown",
-    "prompt_toolkit",
-    "multicodec",
+    "base58",
     "configargparse",
-    "pyld",
-    "pydid",
-    "aries_askar",
-    "indy_vdr",
-    "aioredis",
+    "dateutil",
     "deepmerge",
+    "did_peer_2",
+    "did_peer_4",
     "ecdsa",
     "indy_credx",
-    "dateutil",
-    "packaging",
+    "indy_vdr",
+    "indy",
     "jsonpath_ng",
-    "unflatten",
-    "qrcode",
-    "rlp",
-    "nest_asyncio",
+    "jwt",
+    "markdown",
     "marshmallow",
-    "typing_extensions",
-    "async_timeout",
+    "msgpack",
+    "multicodec",
+    "multiformats",
+    "nacl",
+    "nest_asyncio",
+    "packaging",
     "portalocker",
+    "prompt_toolkit",
+    "pydid",
+    "pyld",
+    "pytest",
     "pythonjsonlogger",
-    "jwt",
-    "yaml",
-    "pytz",
-    "multiformats",
+    "qrcode",
+    "rlp",
     "sd_jwt",
-    "anoncreds",
-    "did_peer_2",
-    "did_peer_4",
+    "setup",
+    "typing_extensions",
+    "unflatten",
+    "yaml",
 ]
 
 #    "aries_cloudagent.tests.test_conductor",

pyproject.toml

@@ -39,7 +39,6 @@ pyld="^2.0.4"
 pynacl="~1.5.0"
 python-dateutil="~2.8.1"
 python-json-logger="~2.0.7"
-pytz="~2021.1"
 pyyaml="~6.0.1"
 qrcode = {version = ">=6.1,<7.0", extras = ["pil"]}
 requests="~2.31.0"