python中判断一个dataframe非空 python中判断一个dataframe非空 DataFrame有一个属性为empty,直接用DataFrame.empty判断就行。 如果df为空,则 df.empty 返回 True,反之 返回False。 注意empty后面不要加()。 学习tips:查好你自己所用的Pandas对应的版本,在官网上下载Pandas 使用的pdf手册,直接搜索“empty”,就可...
python中判断一个dataframe非空 DataFrame有一个属性为empty,直接用DataFrame.empty判断就行。 如果df为空,则 df.empty 返回 True,反之 返回False。 注意empty后面不要加()。 学习tips:查好你自己所用的Pandas对应的版本,在官网上下载Pandas 使用的pdf手册,直接搜索“empty”,就可找到有...数据...
today = date.today() if start is None: start = str(today - timedelta(days=8)) if end is None: end = str(today - timedelta(days=2)) try: raw_data = self.get_index_data_json(keys=keys, start=start, end=end) raw_data = pd.DataFrame(raw_data[keys[0]]) raw_data.index = pd...
container['q2'].records expected_cols = ['j', 'i', 'value'] if data is None or not data.empty: raise Exception("Expected >q2< to have an empty DataFrame.") if (data.columns != expected_cols).any(): raise Exception("Unexpected columns for >d<.") endEmbeddedCode ...
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but that doesn’t always extend to the unit tests; some things are just really awkward to write tests for. Perhaps the function you’re testing requires you tomockout a bunch of things, or perhaps it outputs a complex data structure like a DataFrame and takes a ton of assertions to prope...
If you only need to compare DataFrames, you can useDataFrameComparerwith the associatedassertSmallDataFrameEqualityandassertLargeDataFrameEqualitymethods. Under the hood,DataFrameCompareruses theassertSmallDatasetEqualityandassertLargeDatasetEquality. Note : comparing Datasets can be tricky since some column nam...
DataFrame(data=zentao_testcase_rows, columns=fileheader) #构造数据 df.to_excel(zentao_file, index=False) #写入文件,设置不需要索引 logging.info('Convert XMind file(%s) to a zentao csv file(%s) successfully!', xmind_file, zentao_file) return zentao_file 2.前往webtool安装目录下...
"torch.utils.data.datapipes.dataframe": [ "DFIterDataPipe" ], "torch.utils.dlpack": [ "Any", "to_dlpack" ], "torch": [ "BFloat16Storage", "BFloat16Tensor", "ComplexDoubleStorage", "ComplexFloatStorage", "DisableTorchFunction", "DisableTorchFunctionSubcla...
What does if __name__ == "__main__": do? Does Python have a ternary conditional operator? What are metaclasses in Python? How to iterate over rows in a DataFrame in Pandas Does Python have a string 'contains' substring method? How do I concatenate two lists in Python? Why...