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Function load_backend has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

def load_backend(backend_name):
    """
    Return a database backend's "base" module given a fully qualified database
    backend name, or raise an error if it doesn't exist.
    """
Severity: Minor
Found in django/db/utils.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function as_widget has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def as_widget(self, widget=None, attrs=None, only_initial=False):
        """
        Render the field by rendering the passed widget, adding any HTML
        attributes passed as attrs. If a widget isn't specified, use the
        field's default widget.
Severity: Minor
Found in django/forms/boundfield.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _validate_username has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _validate_username(self, username, verbose_field_name, database):
        """Validate username. If invalid, return a string error message."""
        if self.username_field.unique:
            try:
                self.UserModel._default_manager.db_manager(database).get_by_natural_key(username)
Severity: Minor
Found in django/contrib/auth/management/commands/createsuperuser.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function result_hidden_fields has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

def result_hidden_fields(cl):
    if cl.formset:
        for res, form in zip(cl.result_list, cl.formset.forms):
            if form[cl.model._meta.pk.name].is_hidden:
                yield mark_safe(form[cl.model._meta.pk.name])
Severity: Minor
Found in django/contrib/admin/templatetags/admin_list.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function __init__ has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def __init__(self, *, required=True, widget=None, label=None, initial=None,
                 help_text='', error_messages=None, show_hidden_initial=False,
                 validators=(), localize=False, disabled=False, label_suffix=None):
        # required -- Boolean that specifies whether the field is required.
        #             True by default.
Severity: Minor
Found in django/forms/fields.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _path_from_module has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _path_from_module(self, module):
        """Attempt to determine app's filesystem path from its module."""
        # See #21874 for extended discussion of the behavior of this method in
        # various cases.
        # Convert paths to list because Python's _NamespacePath doesn't support
Severity: Minor
Found in django/apps/config.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function clean has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def clean(self, value):
        if value in self.empty_values:
            if self.pk_field:
                return None
            # if there is no value act as we did before.
Severity: Minor
Found in django/forms/models.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function get_swappable_settings_name has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def get_swappable_settings_name(self, to_string):
        """
        For a given model string (e.g. "auth.User"), return the name of the
        corresponding settings name if it refers to a swappable model. If the
        referred model is not swappable, return None.
Severity: Minor
Found in django/apps/registry.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function allow_relation has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def allow_relation(self, obj1, obj2, **hints):
        for router in self.routers:
            try:
                method = router.allow_relation
            except AttributeError:
Severity: Minor
Found in django/db/utils.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _construct_form has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _construct_form(self, i, **kwargs):
        """Instantiate and return the i-th form instance in a formset."""
        defaults = {
            'auto_id': self.auto_id,
            'prefix': self.add_prefix(i),
Severity: Minor
Found in django/forms/formsets.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function check_token has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def check_token(self, user, token):
        """
        Check that a password reset token is correct for a given user.
        """
        if not (user and token):
Severity: Minor
Found in django/contrib/auth/tokens.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _construct_form has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _construct_form(self, i, **kwargs):
        form = super()._construct_form(i, **kwargs)
        if self.save_as_new:
            mutable = getattr(form.data, '_mutable', None)
            # Allow modifying an immutable QueryDict.
Severity: Minor
Found in django/forms/models.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function identify_hasher has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

def identify_hasher(encoded):
    """
    Return an instance of a loaded password hasher.

    Identify hasher algorithm by examining encoded hash, and call
Severity: Minor
Found in django/contrib/auth/hashers.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _load_library has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _load_library(self):
        if self.library is not None:
            if isinstance(self.library, (tuple, list)):
                name, mod_path = self.library
            else:
Severity: Minor
Found in django/contrib/auth/hashers.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function __init__ has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def __init__(self, media=None, css=None, js=None):
        if media is not None:
            css = getattr(media, 'css', {})
            js = getattr(media, 'js', [])
        else:
Severity: Minor
Found in django/forms/widgets.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function get_queryset has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def get_queryset(self):
        if not hasattr(self, '_queryset'):
            if self.queryset is not None:
                qs = self.queryset
            else:
Severity: Minor
Found in django/forms/models.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function get_app_config has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def get_app_config(self, app_label):
        """
        Import applications and returns an app config for the given label.

        Raise LookupError if no application exists with this label.
Severity: Minor
Found in django/apps/registry.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function results has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

def results(cl):
    if cl.formset:
        for res, form in zip(cl.result_list, cl.formset.forms):
            yield ResultList(form, items_for_result(cl, res, form))
    else:
Severity: Minor
Found in django/contrib/admin/templatetags/admin_list.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function clear_cache has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def clear_cache(self):
        """
        Clear all internal caches, for methods that alter the app registry.

        This is mostly used in tests.
Severity: Minor
Found in django/apps/registry.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _post_clean has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    def _post_clean(self):
        opts = self._meta

        exclude = self._get_validation_exclusions()

Severity: Minor
Found in django/forms/models.py - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

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