Replaced use of six with the equivalent pure python3 constructs.

- Legacy-Id: 16428

ietf/api/__init__.py

@@ -1,6 +1,5 @@
 # Copyright The IETF Trust 2014-2019, All Rights Reserved
 import re
-import six
 import datetime
 from urllib.parse import urlencode
 
@@ -76,7 +75,7 @@ class TimedeltaField(ApiField):
         if value is None:
             return None
 
-        if isinstance(value, six.string_types):
+        if isinstance(value, str):
             match = TIMEDELTA_REGEX.search(value)
 
             if match:
@@ -91,7 +90,7 @@ class TimedeltaField(ApiField):
         value = super(TimedeltaField, self).hydrate(bundle)
 
         if value and not hasattr(value, 'seconds'):
-            if isinstance(value, six.string_types):
+            if isinstance(value, str):
                 try:
                     match = TIMEDELTA_REGEX.search(value)
 
@@ -117,7 +116,7 @@ class ToOneField(tastypie.fields.ToOneField):
         if callable(self.attribute):
             previous_obj = bundle.obj
             foreign_obj = self.attribute(bundle)
-        elif isinstance(self.attribute, six.string_types):
+        elif isinstance(self.attribute, str):
             foreign_obj = bundle.obj
 
             for attr in self._attrs:

ietf/doc/models.py

@@ -5,7 +5,6 @@ import datetime
 import logging
 import os
 import rfc2html
-import six
 
 from django.db import models
 from django.core import checks
@@ -430,7 +429,7 @@ class DocumentInfo(models.Model):
 
     def relations_that_doc(self, relationship):
         """Return the related-document objects that describe a given relationship from self to other documents."""
-        if isinstance(relationship, six.string_types):
+        if isinstance(relationship, str):
             relationship = ( relationship, )
         if not isinstance(relationship, tuple):
             raise TypeError("Expected a string or tuple, received %s" % type(relationship))

ietf/group/tests_info.py

@@ -7,7 +7,6 @@ import calendar
 import datetime
 import io
 import bleach
-import six
 
 from pyquery import PyQuery
 from tempfile import NamedTemporaryFile

ietf/liaisons/forms.py

@@ -3,7 +3,6 @@
 
 import datetime, os
 import operator
-import six
 from email.utils import parseaddr
 from form_utils.forms import BetterModelForm
 
@@ -199,7 +198,7 @@ class CustomModelMultipleChoiceField(forms.ModelMultipleChoiceField):
         if isinstance(value, QuerySet):
             return value
         if (hasattr(value, '__iter__') and
-                not isinstance(value, six.text_type) and
+                not isinstance(value, str) and
                 not hasattr(value, '_meta')):
             return [super(CustomModelMultipleChoiceField, self).prepare_value(v) for v in value]
         return super(CustomModelMultipleChoiceField, self).prepare_value(value)

ietf/person/fields.py

@@ -1,6 +1,5 @@
 # Copyright The IETF Trust 2012-2019, All Rights Reserved
 import json
-import six
 
 from collections import Counter
 from urllib.parse import urlencode
@@ -110,7 +109,7 @@ class SearchablePersonsField(forms.CharField):
             #if self.only_users:
             #    objs = objs.exclude(person__user=None)
 
-        found_pks = [ six.text_type(o.pk) for o in objs]
+        found_pks = [ str(o.pk) for o in objs]
         failed_pks = [x for x in pks if x not in found_pks]
         if failed_pks:
             raise forms.ValidationError("Could not recognize the following {model_name}s: {pks}. You can only input {model_name}s already registered in the Datatracker.".format(pks=", ".join(failed_pks), model_name=self.model.__name__.lower()))

ietf/person/models.py

@@ -3,7 +3,6 @@
 import datetime
 import email.utils
 import email.header
-import six
 import uuid
 
 from hashids import Hashids
@@ -360,7 +359,7 @@ class PersonalApiKey(models.Model):
             for v in (str(self.id), str(self.person.id), self.created.isoformat(), self.endpoint, str(self.valid), self.salt, settings.SECRET_KEY):
                 v = smart_bytes(v)
                 hash.update(v)
-            key = struct.pack(KEY_STRUCT, self.id, six.binary_type(self.salt), hash.digest())
+            key = struct.pack(KEY_STRUCT, self.id, bytes(self.salt), hash.digest())
             self._cached_hash =  base64.urlsafe_b64encode(key).decode('ascii')
         return self._cached_hash
 

ietf/stats/backfill_data.py

@@ -7,7 +7,6 @@ import sys
 import os
 import os.path
 import argparse
-import six
 import time
 
 basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
@@ -129,10 +128,10 @@ for doc in docs_qs.prefetch_related("docalias", "formal_languages", "documentaut
             # it's an extra author - skip those extra authors
             seen = set()
             for full, _, _, _, _, email, country, company in d.get_author_list():
-                assert full is None or    isinstance(full,    six.text_type)
-                assert email is None or   isinstance(email,   six.text_type)
-                assert country is None or isinstance(country, six.text_type)
-                assert company is None or isinstance(company, six.text_type)
+                assert full is None or    isinstance(full,    str)
+                assert email is None or   isinstance(email,   str)
+                assert country is None or isinstance(country, str)
+                assert company is None or isinstance(company, str)
                 #full, email, country, company = [ unicode(s) for s in [full, email, country, company, ] ]
                 if email in seen:
                     continue

ietf/submit/utils.py

@@ -4,7 +4,6 @@
 import datetime
 import os
 import re
-import six                              # pyflakes:ignore
 import xml2rfc
 
 from django.conf import settings
@@ -457,7 +456,7 @@ def ensure_person_email_info_exists(name, email, docname):
         person = Person()
         person.name = name
         person.name_from_draft = name
-        log.assertion('isinstance(person.name, six.text_type)')
+        log.assertion('isinstance(person.name, str)')
         person.ascii = unidecode_name(person.name)
         person.save()
     else:

ietf/utils/draft.py

@@ -40,7 +40,6 @@ import os
 import os.path
 import re
 import stat
-import six
 import sys
 import time
 
@@ -129,7 +128,7 @@ def acronym_match(s, l):
 class Draft():
 
     def __init__(self, text, source, name_from_source=False):
-        assert isinstance(text, six.text_type)
+        assert isinstance(text, str)
         self.source = source
         self.rawtext = text
         self.name_from_source = name_from_source

ietf/utils/fields.py

@@ -1,7 +1,6 @@
 # Copyright The IETF Trust 2012-2019, All Rights Reserved
 
 import re
-import six
 import datetime
 
 import debug                            # pyflakes:ignore
@@ -104,7 +103,7 @@ def parse_duration_ext(value):
             return parse_duration(value)
         else:
             kw = match.groupdict()
-            kw = {k: float(v) for k, v in six.iteritems(kw) if v is not None}
+            kw = {k: float(v) for k, v in kw.items() if v is not None}
             return datetime.timedelta(**kw)
 
 class DurationField(forms.DurationField):

ietf/utils/html.py

@@ -11,7 +11,6 @@ import lxml.html.clean
 import debug                            # pyflakes:ignore
 
 from django.utils.functional import keep_lazy
-from django.utils import six
 
 acceptable_tags = ('a', 'abbr', 'acronym', 'address', 'b', 'big',
     'blockquote', 'body', 'br', 'caption', 'center', 'cite', 'code', 'col',
@@ -32,7 +31,7 @@ def unescape(text):
     """
     return text.replace('&#39;', "'").replace('&quot;', '"').replace('&gt;', '>').replace('&lt;', '<' ).replace('&amp;', '&')
 
-@keep_lazy(six.text_type)
+@keep_lazy(str)
 def remove_tags(html, tags):
     """Returns the given HTML sanitized, and with the given tags removed."""
     allowed = set(acceptable_tags) - set([ t.lower() for t in tags ])

ietf/utils/management/commands/coverage_changes.py

@@ -9,7 +9,6 @@ from difflib import ndiff
 
 from django.conf import settings
 from django.core.management.base import BaseCommand, CommandError
-from django.utils.six import string_types
 
 import debug                            # pyflakes:ignore
 
@@ -57,7 +56,7 @@ class Command(BaseCommand):
     valid_sections = ['template', 'url', 'code']
 
     def read_coverage(self, filename, version=None):
-        if isinstance(filename, string_types):
+        if isinstance(filename, str):
             try:
                 if filename.endswith(".gz"):
                     file = gzip.open(filename, "rb")

ietf/utils/management/commands/tests.py

@@ -1,9 +1,10 @@
+# Copyright The IETF Trust 2015-2019, All Rights Reserved
 import os
 import tempfile
 
 from django.core.management import call_command
 from django.test import TestCase
-from django.utils.six import StringIO
+from io import StringIO
 
 import debug                            # pyflakes:ignore
 

ietf/utils/markup_txt.py

@@ -32,32 +32,14 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import re
-import six
-import string
 
 from django.utils.html import escape
 
 from ietf.utils import log
 from ietf.utils.text import wordwrap
 
-def markup_ascii(content, width=None):
-    log.unreachable('2017-12-08')
-    if six.PY2:
-        assert isinstance(content, str)
-        # at this point, "content" is normal string
-        # fix most common non-ASCII characters
-        t1 = string.maketrans("\x91\x92\x93\x94\x95\x96\x97\xc6\xe8\xe9", "\'\'\"\"o--\'ee")
-        # map everything except printable ASCII, TAB, LF, FF to "?"
-        t2 = string.maketrans('','')
-        t3 = "?"*9 + "\t\n?\f" + "?"*19 + t2[32:127] + "?"*129
-        t4 = t1.translate(t3)
-        content = content.translate(t4)
-    else:
-        log.assertion('six.PY2')
-    return markup(content.decode('ascii'), width)
-
 def markup(content, width=None):
-    log.assertion('isinstance(content, six.text_type)')
+    log.assertion('isinstance(content, str)')
     # normalize line endings to LF only
     content = content.replace("\r\n", "\n")
     content = content.replace("\r", "\n")

ietf/utils/text.py

@@ -6,14 +6,13 @@ import textwrap
 import unicodedata
 
 from django.utils.functional import keep_lazy
-from django.utils import six
 from django.utils.safestring import mark_safe
 
 import debug                            # pyflakes:ignore
 
 from .texescape import init as texescape_init, tex_escape_map
 
-@keep_lazy(six.text_type)
+@keep_lazy(str)
 def xslugify(value):
     """
     Converts to ASCII. Converts spaces to hyphens. Removes characters that
@@ -134,7 +133,7 @@ def maybe_split(text, split=True, pos=5000):
     return text
 
 def decode(raw):
-    assert isinstance(raw, six.binary_type)
+    assert isinstance(raw, bytes)
     try:
         text = raw.decode('utf-8')
     except UnicodeDecodeError:
@@ -146,7 +145,7 @@ def decode(raw):
 def text_to_dict(t):
     "Converts text with RFC2822-formatted header fields into a dictionary-like object."
     # ensure we're handed a unicode parameter
-    assert isinstance(t, six.text_type)
+    assert isinstance(t, str)
     d = {}
     # Return {} for malformed input
     if not len(t.lstrip()) == len(t):

ietf/utils/urls.py

@@ -1,6 +1,5 @@
-# Copyright The IETF Trust 2016, All Rights Reserved
+# Copyright The IETF Trust 2016-2019, All Rights Reserved
 
-import six
 import debug                            # pyflakes:ignore
 from inspect import isclass
 
@@ -17,7 +16,7 @@ def url(regex, view, kwargs=None, name=None):
         branch = 'name'
     elif isinstance(view, (list, tuple)):
         branch = 'list'
-    elif isinstance(view, six.string_types):
+    elif isinstance(view, str):
         branch = 'string'
         name = view
     elif callable(view) and hasattr(view, '__name__'):