Traceback (most recent call last): File "test_calc.py", line 36, in <module> test_add() File 中文解释"test_calc.py", line 13, in test_add assert calc.add(0.1, 0.2) == 0.3 AssertionError

这个错误信息是因为在 test_add() 函数中，使用 assert 断言判断 calc.add(0.1, 0.2) 是否等于 0.3，但是由于浮点数的精度问题，0.1 + 0.2 的结果并不是 0.3，所以断言失败，抛出 AssertionError 异常。

为了解决这个问题，可以使用 Decimal 类型来进行精确的计算。具体可以参考如下代码：

from decimal import Decimal

class Calculator:
    def add(self, a, b):
        return Decimal(str(a)) + Decimal(str(b))

def test_add():
    calc = Calculator()
    assert calc.add(0.1, 0.2) == Decimal('0.3')

相关问题

Traceback (most recent call last): File "paddle\fluid\ir.py", line 24, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\fluid\proto\pass_desc_pb2.py", line 16, in <module> ModuleNotFoundError: No module named 'framework_pb2' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "main.py", line 1, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "index.py", line 7, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "leis\jietuwj.py", line 8, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddleocr\__init__.py", line 14, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddleocr\paddleocr.py", line 21, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\__init__.py", line 62, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\__init__.py", line 15, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\spawn.py", line 24, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\utils\launch_utils.py", line 27, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\fleet\__init__.py", line 31, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\fleet\fleet.py", line 33, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\fluid\ir.py", line 28, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\fluid\proto\pass_desc_pb2.py", line 16, in <module> ModuleNotFoundError: No module named 'framework_pb2' [15508] Failed to execute script 'main' due to unhandled exception!

这是一个 Python 的错误，看起来是在使用 PaddlePaddle 框架时出现了问题。可能是因为缺少某个依赖项或环境配置不正确导致的。你可以尝试更新 PaddlePaddle 和相关的依赖项，或者检查你的环境配置是否正确。如果问题仍然存在，请查看错误信息中的文件和行号，以便更好地定位和解决问题。

python打包成exe后运行失败，提示信息Traceback (most recent call last): File "resp2i.py", line 20, in <module> File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "main_test.py", line 10, in <module> import matplotlib.pyplot as plt File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "matplotlib\__init__.py", line 161, in <module> File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "matplotlib\rcsetup.py", line 27, in <module> File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "matplotlib\colors.py", line 56, in <module> File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "matplotlib\scale.py", line 22, in <module> File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "matplotlib\ticker.py", line 138, in <module> File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module File "matplotlib\transforms.py", line 49, in <module> ImportError: DLL load failed while importing _path: 找不到指定的模块。

这个错误提示是导入 matplotlib 库时发生了错误。可能是因为 PyInstaller 没有正确处理 matplotlib 库的依赖关系导致的。

你可以尝试在 PyInstaller 打包时添加 `--hidden-import` 参数，将 matplotlib 依赖的库手动添加到打包文件中。

例如：

pyinstaller --hidden-import matplotlib.backends.backend_qt5agg main.py

其中 `main.py` 是你的主程序文件。

另外，还有一种解决方法是在程序中添加以下代码来强制导入 matplotlib 的依赖库：

import matplotlib
matplotlib.use('Qt5Agg')

这段代码应该放在 `import matplotlib` 之前。