def safe_divide(a, b): with np.errstate(divide='ignore', invalid='ignore'): result = np.true_divide(a, b) if np.isinf(result) or np.isnan(result): return "Division by zero encountered." return result 采用第三方库,不仅可以简化代码,还可以利用这些库提供的高级功能来处理复杂的数学计算。
但是,RuntimeWarning: divide by zero encountered in log10仍然出现,我确定是这一行引起了警告。 虽然我的问题解决了,但我很困惑为什么这个警告一次又一次出现? 将其关闭 numpy.seterr(divide = 'ignore') 然后继续
下面的代码示例演示了如何禁止打印输出警告信息: importwarningsdefdivide(a,b):withwarnings.catch_warnings():warnings.filterwarnings("ignore")returna/b result=divide(10,0)# 这里会引发警告信息print(result) 1. 2. 3. 4. 5. 6. 7. 8. 9. 在上述代码中,我们使用catch_warnings上下文管理器来临时禁止...
此外,可以通过help(dir(numpy))查看numpy包中的函数: ['ALLOW_THREADS', 'AxisError', 'BUFSIZE', 'CLIP', 'ComplexWarning', 'DataSource', 'ERR_CALL', 'ERR_DEFAULT', 'ERR_IGNORE', 'ERR_LOG', 'ERR_PRINT', 'ERR_RAISE', 'ERR_WARN', 'FLOATING_POINT_SUPPORT', 'FPE_DIVIDEBYZERO', 'FPE...
self.reverse_write# ③return'JABBERWOCKY'# ④defreverse_write(self, text):# ⑤self.original_write(text[::-1])def__exit__(self, exc_type, exc_value, traceback):# ⑥sys.stdout.write = self.original_write# ⑦ifexc_typeisZeroDivisionError:# ⑧print('Please DO NOT divide by zero!')...
write=self.reverse_write# ③return'JABBERWOCKY'# ④defreverse_write(self,text):# ⑤self.original_write(text[::-1])def__exit__(self,exc_type,exc_value,traceback):# ⑥sys.stdout.write=self.original_write# ⑦ifexc_typeisZeroDivisionError:# ⑧print('Please DO NOT divide by zero!')return...
['ALLOW_THREADS', 'AxisError', 'BUFSIZE', 'CLIP', 'ComplexWarning', 'DataSource', 'ERR_CALL', 'ERR_DEFAULT', 'ERR_IGNORE', 'ERR_LOG', 'ERR_PRINT', 'ERR_RAISE', 'ERR_WARN', 'FLOATING_POINT_SUPPORT', 'FPE_DIVIDEBYZERO', 'FPE_INVALID', 'FPE_OVERFLOW', 'FPE_UNDERFLOW', 'Fals...
try: for i in range(3): try: 1 / i except ZeroDivisionError: # Let's throw it here and handle it outside for loop raise ZeroDivisionError("A trivial divide by zero error") finally: print("Iteration", i) break except ZeroDivisionError as e: print("Zero division error occurred", e)Out...
add(a, b) == expected # 异常测试 def test_divide_by_zero(calculator): with pytest.raises(ZeroDivisionError): calculator.divide(1, 0) # 标记测试 @pytest.mark.slow def test_complex_calculation(calculator): result = calculator.complex_operation() assert result > 0 # 跳过测试 @pytest.mark....
.gitignore README.md _config.yml make.bat requirements_.txt updatelog.md View code README.md 告别枯燥,60秒学会一个小例子,系统学习Python,从入门到大师。Python之路已有247 个例子:感受Python之美 | 一、Python基础 |二、Python字符串和正则|三、Python文件和日期|四、Python三大利器|五、Python...