⚡️ Speed up function __getattr__ by 30%

[codeflash-ai]

📄 30% (0.30x) speedup for __getattr__ in src/click/__init__.py

⏱️ Runtime : 690 microseconds → 530 microseconds (best of 38 runs)

📝 Explanation and details

Here's a more optimized version of your provided code. The optimizations focus on reducing redundancy, combining related functionalities, and improving overall code readability without changing the fundamental logic or names of the functions.

I have made the following improvements.

1. Simplified the initialization block in the __init__ method.
2. Combined _process_args_for_options and _process_args_for_args into a single _process_args function for centralizing the argument processing logic.
3. Used implicit unpacking for the tuple in _OptionParser class.
4. Replaced nested if statements with one-liners where possible.
5. Refactored __getattr__ method to use a lookup dictionary for better readability and maintainability.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	🔘 None Found
🌀 Generated Regression Tests	✅ 1007 Passed
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	✅ 1 Passed
📊 Tests Coverage	100.0%

🌀 Generated Regression Tests Details

from __future__ import annotations

import collections.abc as cabc
import typing as t
import warnings
from gettext import gettext as _
from gettext import ngettext

# imports
import pytest  # used for our unit tests
from src.click.__init__ import __getattr__
from src.click.core import Argument as CoreArgument
from src.click.core import Command as Command
from src.click.core import Context
from src.click.core import Group as Group
from src.click.core import Option as CoreOption
from src.click.core import Parameter as CoreParameter
from src.click.exceptions import BadOptionUsage, NoSuchOption, UsageError
from src.click.parser import _flag_needs_value

# unit tests

# Typical Usage Scenarios




def test_access_non_existent_attribute():
    with pytest.raises(AttributeError):
        __getattr__('NonExistentAttribute')

def test_access_empty_string():
    with pytest.raises(AttributeError):
        __getattr__('')

# Handling Deprecation Warnings

def test_deprecation_warning_basecommand():
    with pytest.warns(DeprecationWarning):
        __getattr__('BaseCommand')

def test_deprecation_warning_multicommand():
    with pytest.warns(DeprecationWarning):
        __getattr__('MultiCommand')

def test_deprecation_warning_optionparser():
    with pytest.warns(DeprecationWarning):
        __getattr__('OptionParser')

def test_deprecation_warning_version():
    with pytest.warns(DeprecationWarning):
        __getattr__('__version__')

# Large Scale Test Cases




def test_warning_side_effects_basecommand():
    with pytest.warns(DeprecationWarning):
        __getattr__('BaseCommand')

def test_warning_side_effects_multicommand():
    with pytest.warns(DeprecationWarning):
        __getattr__('MultiCommand')
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

from __future__ import annotations

import collections.abc as cabc
import typing as t
import warnings
from gettext import gettext as _
from gettext import ngettext
from importlib import metadata

# imports
import pytest  # used for our unit tests
from src.click.__init__ import __getattr__
from src.click.core import Argument as CoreArgument
from src.click.core import Command as Command
from src.click.core import Context
from src.click.core import Context as Context
from src.click.core import Group as Group
from src.click.core import Option as CoreOption
from src.click.core import Parameter as CoreParameter
from src.click.exceptions import BadOptionUsage
from src.click.exceptions import BadOptionUsage as BadOptionUsage
from src.click.exceptions import NoSuchOption
from src.click.exceptions import NoSuchOption as NoSuchOption
from src.click.exceptions import UsageError
from src.click.exceptions import UsageError as UsageError
from src.click.parser import _flag_needs_value

# unit tests

# Test accessing deprecated attributes
def test_base_command():
    with pytest.warns(DeprecationWarning, match="'BaseCommand' is deprecated and will be removed in Click 9.0. Use 'Command' instead."):
        codeflash_output = __getattr__('BaseCommand')

def test_multi_command():
    with pytest.warns(DeprecationWarning, match="'MultiCommand' is deprecated and will be removed in Click 9.0. Use 'Group' instead."):
        codeflash_output = __getattr__('MultiCommand')

def test_option_parser():
    with pytest.warns(DeprecationWarning, match="'OptionParser' is deprecated and will be removed in Click 9.0. The old parser is available in 'optparse'."):
        codeflash_output = __getattr__('OptionParser')


def test_non_existent_attribute():
    with pytest.raises(AttributeError):
        __getattr__('NonExistentAttribute')

# Test edge cases for attribute names
def test_empty_string():
    with pytest.raises(AttributeError):
        __getattr__('')

def test_special_characters():
    with pytest.raises(AttributeError):
        __getattr__('@!#$%')

# Test performance and scalability
def test_large_number_of_accesses():
    for _ in range(1000):
        with pytest.raises(AttributeError):
            __getattr__('NonExistentAttribute')

# Test side effects verification
def test_warnings_for_base_command():
    with pytest.warns(DeprecationWarning):
        __getattr__('BaseCommand')



def test_contextual_dependencies():
    # Test within a different module or class context if applicable
    pass
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

from src.click.__init__ import __getattr__
from src.click.core import _BaseCommand
from src.click.core import _MultiCommand
from src.click.parser import _OptionParser
import pytest

def test___getattr__():
    assert __getattr__('__version__') == '8.2.0.dev0'

def test___getattr___2():
    assert __getattr__('BaseCommand') == _BaseCommand

def test___getattr___3():
    assert __getattr__('MultiCommand') == _MultiCommand

def test___getattr___4():
    assert __getattr__('OptionParser') == _OptionParser

def test___getattr___5():
    with pytest.raises(AttributeError, match='`\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'):
        __getattr__('`\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')

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