Removal of python-future compatibility code

.github/workflows/tox.yml

@@ -15,14 +15,15 @@ jobs:
           - '3.9'
           - '3.10'
           - '3.11'
+          - '3.12'
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
-        run: python -mpip install --upgrade wheel pytest tox
+        run: python -mpip install --upgrade wheel pytest tox setuptools
       - name: Get tox target
         id: toxtarget
         run: |

omero/plugins/web.py

@@ -9,7 +9,6 @@
 """
 
 import traceback
-from future.utils import bytes_to_native_str
 from datetime import datetime
 from omero.cli import DiagnosticsControl
 from omero.cli import CLI
@@ -21,11 +20,7 @@
 from functools import wraps
 from omero_ext.argparse import SUPPRESS
 
-try:
-    from omero_ext.path import path
-except ImportError:
-    # Python 2
-    from path import path
+from omero_ext.path import path
 from pkg_resources import resource_string
 
 from omero.install.windows_warning import windows_warning, WINDOWS_WARNING
@@ -348,9 +343,7 @@ def config(self, args, settings):
             self.ctx.die(679, "Web template configuration requires" "wsgi or wsgi-tcp.")
 
         template_file = "%s.conf.template" % server
-        c = bytes_to_native_str(
-            resource_string("omeroweb", "templates/" + template_file)
-        )
+        c = resource_string("omeroweb", "templates/" + template_file).decode("utf-8")
         self.ctx.out(c % d)
 
     def syncmedia(self, args):

omeroweb/connector.py

@@ -22,8 +22,6 @@
 import re
 import logging
 
-from future.utils import with_metaclass
-
 from omero import client_wrapper
 from omeroweb.version import omeroweb_version as omero_version
 
@@ -40,8 +38,7 @@ def __iter__(cls):
         return iter(cls._registry.values())
 
 
-# with_metaclass to support python2 and python3
-class ServerBase(with_metaclass(IterRegistry)):
+class ServerBase(metaclass=IterRegistry):
     _next_id = 1
 
     def __init__(self, host, port, server=None):

omeroweb/custom_forms.py

@@ -20,7 +20,6 @@
 #
 
 import warnings
-from past.builtins import basestring
 from django import forms
 from django.utils.encoding import smart_str
 
@@ -62,12 +61,10 @@ def full_clean(self):
                     initial = self.initial.get(name, field.initial)
                     value = field.clean(value, initial)
                 elif isinstance(field, CharField):
-                    if (
-                        value is not None
-                        and isinstance(value, basestring)
-                        and len(value) > 0
-                    ):
-                        value = str(smart_str(value))
+                    if value is not None and isinstance(value, str) and len(value) > 0:
+                        value = str(
+                            smart_str(value)
+                        )  # TODO: This is probably a noop now
                     else:
                         value = field.clean(value)
                 else:

omeroweb/feedback/sendfeedback.py

@@ -29,19 +29,9 @@
 import logging
 from urllib.parse import urlencode
 
-try:
-    # python2
-    from urllib2 import urlopen, Request, HTTPError, URLError
-except ImportError:
-    # python3
-    from urllib.request import urlopen, Request
-    from urllib.error import HTTPError, URLError
-try:
-    # python2
-    from urlparse import urljoin
-except ImportError:
-    # python3
-    from urllib.parse import urljoin
+from urllib.request import urlopen, Request
+from urllib.error import HTTPError, URLError
+from urllib.parse import urljoin
 
 from omeroweb.version import omeroweb_version as omero_version
 

omeroweb/manage.py

@@ -38,7 +38,7 @@
     except ImportError:
         # The above import may fail for some other reason. Ensure that the
         # issue is really that Django is missing to avoid masking other
-        # exceptions on Python 2.
+        # exceptions.
         try:
             import django
         except ImportError:

omeroweb/settings.py

@@ -38,7 +38,6 @@
 import json
 import random
 import string
-from builtins import str as text
 import portalocker
 
 from omero.util.concurrency import get_event
@@ -1259,18 +1258,6 @@ def check_worker_class(c):
     return str(c)
 
 
-def check_threading(t):
-    t = int(t)
-    if t > 1:
-        try:
-            import concurrent.futures  # NOQA
-        except ImportError:
-            raise ImportError(
-                "You are using sync workers with " "multiple threads. Install futures"
-            )
-    return t
-
-
 # DEVELOPMENT_SETTINGS_MAPPINGS - WARNING: For each setting developer MUST open
 # a ticket that needs to be resolved before a release either by moving the
 # setting to CUSTOM_SETTINGS_MAPPINGS or by removing the setting at all.
@@ -1298,7 +1285,7 @@ def check_threading(t):
     "omero.web.wsgi_threads": [
         "WSGI_THREADS",
         1,
-        check_threading,
+        int,
         (
             "(SYNC WORKERS only) The number of worker threads for handling "
             "requests. Check Gunicorn Documentation "
@@ -1770,8 +1757,8 @@ def report_settings(module):
 # Load server list and freeze
 def load_server_list():
     for s in SERVER_LIST:  # from CUSTOM_SETTINGS_MAPPINGS  # noqa
-        server = (len(s) > 2) and text(s[2]) or None
-        Server(host=text(s[0]), port=int(s[1]), server=server)
+        server = (len(s) > 2) and str(s[2]) or None
+        Server(host=str(s[0]), port=int(s[1]), server=server)
     Server.freeze()
 
 

omeroweb/testlib/__init__.py

@@ -20,9 +20,6 @@
 """
    Library for Web integration tests
 """
-from __future__ import print_function
-
-from future import standard_library
 import json
 import warnings
 
@@ -32,7 +29,6 @@
 
 from omero.testlib import ITest
 
-standard_library.install_aliases()  # noqa
 from urllib.parse import urlencode  # noqa
 
 

omeroweb/utils.py

@@ -26,7 +26,6 @@
 from django.utils.http import urlencode
 from django.urls import reverse
 from django.urls import NoReverseMatch
-from past.builtins import basestring
 
 
 logger = logging.getLogger(__name__)
@@ -95,7 +94,7 @@ def reverse_with_params(*args, **kwargs):
     except NoReverseMatch:
         return url
     if qs:
-        if not isinstance(qs, basestring):
+        if not isinstance(qs, str):
             qs = urlencode(qs)
         url += "?" + qs
     return url

omeroweb/webadmin/custom_forms.py

@@ -34,8 +34,6 @@
 from django.utils.encoding import smart_str
 from django.core.validators import validate_email, EMPTY_VALUES
 
-from past.builtins import long
-
 
 ##################################################################
 # Fields
@@ -101,7 +99,7 @@ def to_python(self, value):
             return None
         res = False
         for q in self.queryset:
-            if long(value) == q.id:
+            if int(value) == q.id:
                 res = True
         if not res:
             raise ValidationError(self.error_messages["invalid_choice"])
@@ -167,10 +165,10 @@ def to_python(self, value):
             exps = self.queryset
         for experimenter in exps:
             if hasattr(experimenter.id, "val"):
-                if long(value) == experimenter.id.val:
+                if int(value) == experimenter.id.val:
                     res = True
             else:
-                if long(value) == experimenter.id:
+                if int(value) == experimenter.id:
                     res = True
         if not res:
             raise ValidationError(self.error_messages["invalid_choice"])
@@ -221,17 +219,17 @@ def to_python(self, value):
         final_values = []
         for val in value:
             try:
-                long(val)
+                int(val)
             except Exception:
                 raise ValidationError(self.error_messages["invalid_choice"])
             else:
                 res = False
                 for q in self.queryset:
                     if hasattr(q.id, "val"):
-                        if long(val) == q.id.val:
+                        if int(val) == q.id.val:
                             res = True
                     else:
-                        if long(val) == q.id:
+                        if int(val) == q.id:
                             res = True
                 if not res:
                     raise ValidationError(self.error_messages["invalid_choice"])
@@ -354,9 +352,9 @@ def checkValue(q, value):
             if not hasattr(q, "id"):
                 return False
             if hasattr(q.id, "val"):
-                if long(value) == q.id.val:
+                if int(value) == q.id.val:
                     return True
-            if long(value) == q.id:
+            if int(value) == q.id:
                 return True
 
         for q in self.queryset:
@@ -421,17 +419,17 @@ def to_python(self, value):
         final_values = []
         for val in value:
             try:
-                long(val)
+                int(val)
             except Exception:
                 raise ValidationError(self.error_messages["invalid_choice"])
             else:
                 res = False
                 for q in self.queryset:
                     if hasattr(q.id, "val"):
-                        if long(val) == q.id.val:
+                        if int(val) == q.id.val:
                             res = True
                     else:
-                        if long(val) == q.id:
+                        if int(val) == q.id:
                             res = True
                 if not res:
                     raise ValidationError(self.error_messages["invalid_choice"])

omeroweb/webadmin/forms.py

@@ -23,10 +23,7 @@
 
 import logging
 
-try:
-    from collections import OrderedDict  # Python 2.7+ only
-except Exception:
-    pass
+from collections import OrderedDict
 
 from django import forms
 from django.forms.widgets import Textarea

omeroweb/webclient/controller/history.py

@@ -27,7 +27,6 @@
 import datetime
 import time
 
-from past.builtins import long
 from django.conf import settings
 
 from omeroweb.webclient.controller import BaseController
@@ -172,8 +171,8 @@ def calendar_items(self, month, monthrange):
             ("%i-%s-%i 23:59:59" % (self.year, mn, monthrange)), "%Y-%m-%d %H:%M:%S"
         )
 
-        start = long(time.mktime(d1.timetuple()) + 1e-6 * d1.microsecond) * 1000
-        end = long(time.mktime(d2.timetuple()) + 1e-6 * d2.microsecond) * 1000
+        start = int(time.mktime(d1.timetuple()) + 1e-6 * d1.microsecond) * 1000
+        end = int(time.mktime(d2.timetuple()) + 1e-6 * d2.microsecond) * 1000
         all_logs = self.conn.getEventsByPeriod(start, end, self.eid)
 
         items = dict()
@@ -218,8 +217,8 @@ def get_items(self, page=None):
             ("%i-%s-%s 23:59:59" % (self.year, mn, dy)), "%Y-%m-%d %H:%M:%S"
         )
 
-        start = long(time.mktime(d1.timetuple()) + 1e-6 * d1.microsecond) * 1000
-        end = long(time.mktime(d2.timetuple()) + 1e-6 * d2.microsecond) * 1000
+        start = int(time.mktime(d1.timetuple()) + 1e-6 * d1.microsecond) * 1000
+        end = int(time.mktime(d2.timetuple()) + 1e-6 * d2.microsecond) * 1000
 
         self.day_items = list()
         self.day_items_size = 0

omeroweb/webclient/controller/search.py

@@ -23,7 +23,6 @@
 # Version: 1.0
 #
 
-from past.builtins import long
 import time
 import omero
 import logging
@@ -89,11 +88,11 @@ def search(
 
                     created = [
                         rtime(
-                            long(time.mktime(d1.timetuple()) + 1e-6 * d1.microsecond)
+                            int(time.mktime(d1.timetuple()) + 1e-6 * d1.microsecond)
                             * 1000
                         ),
                         rtime(
-                            long(time.mktime(d2.timetuple()) + 1e-6 * d2.microsecond)
+                            int(time.mktime(d2.timetuple()) + 1e-6 * d2.microsecond)
                             * 1000
                         ),
                     ]