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... ...
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...问答...
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 ...
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...
empty_table().to_pandas().dtypes 131 143 else: mars/dataframe/datasource/tests/test_datasource_execution.py -4 Original file line numberDiff line numberDiff line change @@ -1288,10 +1288,6 @@ def test_read_raydataset(ray_start_regular, ray_create_mars_cluster): 1288 1288 pdf2,...
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...
Alternatively, you can use if x: which is equivalent to if x is not None:, this will evaluate to True unless x is None, False or empty. x = 5 if x: print("x is not None or False") else: print("x is None or False") Try it Yourself » Copy This will print "x is no...
"EmptyTypeAnnotation", "ExprStmt", "FalseLiteral", "For", "FunctionModifiers", "Ident", "If", "List", "ListComp", "ListLiteral", "NoneLiteral", "Param", "Pass", "Property", "Raise", "Return", "Select", "SliceExpr", "Starred", "Stmt",...