如何解决：AttributeError：pydriller中的'FunctionInfo'对象没有属性'fan_in'错误？

问题描述

我正在使用pydriller检索提交信息，但是出现错误'AttributeError：'FunctionInfo'对象没有属性'fan_in'。有什么解决办法吗？

执行代码-

from pydriller import RepositoryMining

for commit in RepositoryMining (path_to_repo='https://github.com/openssl/openssl',only_commits=['9cedfc90cebc905b20275d534699a1070bba65a4']).traverse_commits():
    commit_row = {
        'hash': str(commit.hash),'msg': str(commit.msg),'author_date': str(commit.author_date),'merge': str(commit.merge),'dmm_unit_size': str(commit.dmm_unit_size)
    }
    print(commit_row)

我得到以下错误输出：-

Traceback (most recent call last):
  File "/Volumes/GoogleDrive/Shared drives/guru_shared/guru_research/CVE-code-extraction/Code/example_extraction.py",line 30,in <module>
    'dmm_unit_size': str(commit.dmm_unit_size)
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 687,in dmm_unit_size
    return self._delta_maintainability(DMMProperty.UNIT_SIZE)
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 735,in _delta_maintainability
    delta_profile = self._delta_risk_profile(dmm_prop)
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 752,in _delta_risk_profile
    deltas = [mod._delta_risk_profile(dmm_prop) for mod in supported_modifications]
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",in <listcomp>
    deltas = [mod._delta_risk_profile(dmm_prop) for mod in supported_modifications]
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 386,in _delta_risk_profile
    low_before,high_before = self._risk_profile(self.methods_before,dmm_prop)
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 336,in methods_before
    self._calculate_metrics(include_before=True)
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 406,in _calculate_metrics
    self._function_list.append(Method(func))
  File "/usr/local/lib/python3.8/site-packages/pydriller/domain/commit.py",line 80,in __init__
    self.fan_in = func.fan_in
AttributeError: 'FunctionInfo' object has no attribute 'fan_in'

解决方法

我找到了问题的原因，这与解释器的问题有关。在IDE中将Python解释器更改为3.8版后，问题得以解决。