More Itertools 3.0.0 Python库发布:更高效的迭代工具包

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资源摘要信息: "Python库 | more_itertools-3.0.0-py3-none-any.whl" 在现代的软件开发中,Python已经成为了一种广受欢迎的编程语言,它以其简洁的语法和强大的库生态系统而著称。Python库是扩展Python语言功能的重要工具,它们允许开发者快速实现各种编程任务,从数据分析到网络开发,从人工智能到自动化测试,几乎无所不包。其中,`more_itertools`是Python的一个实用库,它提供了一系列额外的迭代器工具,这些工具可以用于迭代式编程中,用于解决在数据处理、集合操作等场景下的常见问题。 more_itertools库是专门为Python设计的一个第三方库,它不是Python标准库的一部分,但是一旦安装后,可以与Python的内置itertools模块无缝协作。这个库通过提供更多的迭代工具来帮助开发者在迭代数据时执行更为复杂的操作,提高代码的复用性和可读性。库中包含了许多实用的功能,例如对迭代器进行分组、并行迭代、排序、过滤、重采样、窗口滑动等操作。 ### 关于more_itertools库的具体知识点包括: 1. **迭代器的扩展**: more_itertools在Python的内置itertools模块基础上,进一步扩展了迭代器的功能。开发者可以利用more_itertools库中的工具,对数据集进行更复杂的迭代处理。 2. **并行迭代**: 通常在处理多个数据集时,需要对这些数据集进行并行迭代,more_itertools提供了相应工具来简化这一过程。例如,`pairwise`函数可以将两个迭代器中相邻的元素配对,这对于比较两个序列或进行同时处理非常有用。 3. **分组与切片**: 在处理大数据集时,经常需要将数据分组或切片。more_itertools提供了如`grouper`和`chunked`等函数,可以方便地将数据分组或切片处理。 4. **过滤与筛选**: 在数据处理过程中,经常需要对数据进行过滤或筛选。more_itertools中的`consecutive_groups`、`split_before`和`split_after`等函数能够根据特定条件对迭代器中的元素进行筛选和分组。 5. **扩展的排序与搜索**: 除了Python内置的排序函数,more_itertools提供了一些高级功能来帮助用户进行元素的排序和搜索。如`unique_everseen`函数能够返回一个迭代器,它将返回的元素进行去重,类似于`itertools.filterfalse`。 6. **窗口与滑动**: 在数据分析和信号处理中,经常需要对数据集应用滑动窗口,more_itertools中的`windowed`函数能够非常方便地实现这一功能。 ### 安装与使用 更多_itertools库是通过Python的包管理工具pip进行安装的。在命令行中输入以下命令即可完成安装: ``` pip install more_itertools ``` 安装完成后,该库的工具就可以被导入到你的Python项目中,按照其API文档使用各种函数和类了。 ### 结论 more_itertools作为一个强大的Python库,提供了众多实用的工具函数,使得迭代式编程变得更加简单和高效。它不仅增强了Python迭代器的功能,还简化了复杂数据处理任务的实现。无论是处理数据集、进行集合操作还是实现算法逻辑,more_itertools都是一个值得推荐的库。通过学习和应用这个库,开发者可以提高他们的代码质量和开发效率。

(base) D:\work1\pycharmproject\ship-strain-measurement-system-main>python setup.py install Traceback (most recent call last): File "setup.py", line 18, in <module> setup(**config) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\__init__.py", line 106, in setup _install_setup_requires(attrs) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\__init__.py", line 74, in _install_setup_requires dist = MinimalDistribution(attrs) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\__init__.py", line 56, in __init__ super().__init__(filtered) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\dist.py", line 494, in __init__ for ep in metadata.entry_points(group='distutils.setup_keywords'): File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 856, in entry_points return EntryPoints(eps).select(**params) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 854, in <genexpr> dist.entry_points for dist in _unique(distributions()) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\_itertools.py", line 16, in unique_everseen k = key(element) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\_py39compat.py", line 18, in normalized_name return dist._normalized_name File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 778, in _normalized_name or super()._normalized_name File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 445, in _normalized_name return Prepared.normalize(self.name) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 700, in normalize return re.sub(r"[-_.]+", "-", name).lower().replace('-', '_') File "D:\software\anaconda\anaconda3\lib\re.py", line 192, in sub return _compile(pattern, flags).sub(repl, string, count) TypeError: expected string or bytes-like object

2023-05-30 上传

from setuptools import setup config = { 'name': 'ssms', 'version': '0.1', 'author': 'Noah Davis', 'packages': ['ssms'], 'package_dir': {'': 'src/main/python'}, 'author_email': 'noahdavis@gwu.edu', 'description': 'Perform strain measurements using computer vision.', 'entry_points': { 'console_scripts': ['ssms=ssms.cli:cli'] } } setup(**config)报错D:\software\anaconda\anaconda3\python.exe D:/work1/pycharmproject/ship-strain-measurement-system-main/setup.py Traceback (most recent call last): File "D:/work1/pycharmproject/ship-strain-measurement-system-main/setup.py", line 18, in <module> setup(**config) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\__init__.py", line 106, in setup _install_setup_requires(attrs) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\__init__.py", line 74, in _install_setup_requires dist = MinimalDistribution(attrs) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\__init__.py", line 56, in __init__ super().__init__(filtered) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\dist.py", line 494, in __init__ for ep in metadata.entry_points(group='distutils.setup_keywords'): File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 856, in entry_points return EntryPoints(eps).select(**params) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 854, in <genexpr> dist.entry_points for dist in _unique(distributions()) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\_itertools.py", line 16, in unique_everseen k = key(element) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\_py39compat.py", line 18, in normalized_name return dist._normalized_name File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 778, in _normalized_name or super()._normalized_name File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 445, in _normalized_name return Prepared.normalize(self.name) File "D:\software\anaconda\anaconda3\lib\site-packages\setuptools\_vendor\importlib_metadata\__init__.py", line 700, in normalize return re.sub(r"[-_.]+", "-", name).lower().replace('-', '_') File "D:\software\anaconda\anaconda3\lib\re.py", line 192, in sub return _compile(pattern, flags).sub(repl, string, count) TypeError: expected string or bytes-like object Process finished with exit code 1

2023-05-31 上传

Traceback (most recent call last): File "D:/pythonProject/DATA/jaffeim.ages(1)/test2.py", line 18, in <module> scores = cross_val_score(knn, X, y, cv=5, scoring='accuracy') File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_validation.py", line 520, in cross_val_score error_score=error_score, File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_validation.py", line 283, in cross_validate for train, test in cv.split(X, y, groups) File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\joblib\parallel.py", line 1043, in __call__ if self.dispatch_one_batch(iterator): File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\joblib\parallel.py", line 833, in dispatch_one_batch islice = list(itertools.islice(iterator, big_batch_size)) File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_validation.py", line 268, in <genexpr> delayed(_fit_and_score)( File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_split.py", line 340, in split for train, test in super().split(X, y, groups): File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_split.py", line 86, in split for test_index in self._iter_test_masks(X, y, groups): File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_split.py", line 709, in _iter_test_masks test_folds = self._make_test_folds(X, y) File "C:\ProgramData\Anaconda3\envs\pythonProject\lib\site-packages\sklearn\model_selection\_split.py", line 673, in _make_test_folds " number of members in each class." % (self.n_splits) ValueError: n_splits=5 cannot be greater than the number of members in each class. 进程已结束,退出代码1

2023-07-10 上传