求解flake8报WPS412错误：__init__.py模块存在逻辑问题

• WPS412是flake8扩展规则集wemake-python-styleguide的专属校验规则，设计初衷是要求__init__.py保持极简定位，仅用来声明包的元信息，不承载任何可执行逻辑。
• 你当前文件中的大量跨子模块import语句，被规则判定为不属于__init__.py允许的合法内容范畴，因此触发报错。

根据你的使用场景可以选择以下任意方案：

方案1：轻量化__init__.py（推荐） #

删除所有导入语句，仅保留文档字符串、包元信息（如版本、作者）以及__all__接口声明即可：

"""summary line: finding_hidden_messages_in_dna is a subpackage.

**description**
It is the part of package coursera_bioinformatics_specialization_solutions.
"""

__version__ = "0.1.0"
__all__ = [
    "find_all_approximate_occurrences_of_pattern_with_given_hamming_distance_in_text",
    "find_clumps_in_text",
    "find_dnaa_box_based_on_mismatches_and_reverse_complements",
    "generate_frequency_table",
    "find_hamming_distance",
    "kmp",
    "find_all_occurrences_of_pattern_in_text",
    "find_locations_of_minimum_and_maximum_skew_value",
    "longest_prefix_that_is_also_suffix",
    "find_most_frequent_k_mers_and_respective_reverse_complements_with_mismatches",
    "find_all_most_frequent_k_mers",
    "find_most_frequent_k_mers_with_mismatches",
    "find_neighbors_with_expected_hamming_distance",
    "find_reverse_complement",
    "find_skew_value"
]

上层调用时直接从子模块导入对应接口即可，示例：from finding_hidden_messages_in_dna.clumps_in_text import find_clumps_in_text

方案2：保留包层级直接导入能力 #

如果你的上层代码已经依赖了直接从包导入接口的写法（如from finding_hidden_messages_in_dna import find_clumps_in_text），可以用惰性导入替换直接导入，避免包加载时执行导入逻辑：

"""summary line: finding_hidden_messages_in_dna is a subpackage.

**description**
It is the part of package coursera_bioinformatics_specialization_solutions.
"""

__all__ = [
    "find_all_approximate_occurrences_of_pattern_with_given_hamming_distance_in_text",
    "find_clumps_in_text",
    # 其余要暴露的接口名按上述格式补充完整
]

def __getattr__(name):
    if name == "find_all_approximate_occurrences_of_pattern_with_given_hamming_distance_in_text":
        from finding_hidden_messages_in_dna.approximate_occurrences_of_pattern_with_given_hamming_distance import find_all_approximate_occurrences_of_pattern_with_given_hamming_distance_in_text
        return find_all_approximate_occurrences_of_pattern_with_given_hamming_distance_in_text
    elif name == "find_clumps_in_text":
        from finding_hidden_messages_in_dna.clumps_in_text import find_clumps_in_text
        return find_clumps_in_text
    # 其余接口的判断分支按上述格式补充完整
    raise AttributeError(f"module {__name__} has no attribute {name}")

方案3：直接忽略该规则 #

如果不需要遵循该风格规范，可直接在__init__.py文件第一行添加注释跳过检查：

# noqa: WPS412
"""summary line: finding_hidden_messages_in_dna is a subpackage.

**description**
It is the part of package coursera_bioinformatics_specialization_solutions.
"""

# 原有导入语句保留不变
from finding_hidden_messages_in_dna.approximate_occurrences_of_pattern_with_given_hamming_distance import \
    find_all_approximate_occurrences_of_pattern_with_given_hamming_distance_in_text
# 其余import语句保持原样

内容的提问来源于stack exchange，提问作者Deepak Tatyaji Ahire