spam = Round(4.2) 9)方法名拼写错误(导致 “AttributeError: 'str' object has no attribute 'lowerr'”) spam ='THIS IS IN LOWERCASE.' spam = spam.lowerr() 10)引用超过list最大索引(导致“IndexError: list index out of range”) 该错误发生在如下代码中: spam = ['cat','dog','mouse'] p...
9、方法名拼写错误 导致AttributeError: 'str' object has no attribute 'lowerr' 该错误发生在如下代码中: spam='THISISINLOWERCASE.' spam=spam.lowerr 10、引用超过 list 最大索引 导致IndexError: list index out of range 该错误发生在如下代码中: spam=['cat','dog','mouse'] print(spam[6]) 11、...
>>># 3 into integer myint>>>myint =3>>># a string of characters into a string variable>>>text ='Some text'>>># a floating point number>>>cost =3*123.45>>># a longer string>>>Name ='Mr'+' '+'Fred'+' '+'Bloggs'>>># a list>>>shoppingList = ['ham','eggs','mushrooms'...
11)方法名拼写错误(导致 “AttributeError: 'str' object has no attribute'lowerr'”) 该错误发生在如下代码中: spam = 'THIS IS INLOWERCASE.' spam =spam.lowerr() 12)引用超过list最大索引(导致“IndexError: list index out of range”) 该错误发生在如下代码中: spam = ['cat','dog', 'mouse'...
File "<stdin>", line 1, in <listcomp> AttributeError: 'int' object has no attribute 'lower' 1. 2. 3. 4. 5. 6. 使用内建的isinstance函数可以判断一个变量是不是字符串: >>> x = 'abc' >>> y = 123 >>> isinstance(x, str) ...
导致“AttributeError: 'str' object has no attribute 'lowerr'” 该错误发生在如下代码中: 复制 spam='THIS IS IN LOWERCASE.'spamspam= spam.lowerr() 1. 2. 10、 引用超过list最大索引 导致“IndexError: list index out of range” 该错误发生在如下代码中: ...
python代码报错: 'DataFrame' object has no attribute 'explode' 原因是pandas版本低于0.25,在0.25以上才有explode函数,所一不想升级的可以自己拆分...没有explode 原始数据: import pandas as pd df = pd.DataFrame({'country': ['China,US,Japan', 'Japan,EU,Australia...120, 90], 'value': [1, 2,...
import pandas as pd df_data = pd.read_csv(data_file, names=col_list) 显示原始数据,df_data.head() 运行apply函数,并记录该操作耗时: for col in df_data.columns: df_data[col] = df_data.apply(lambda x: apply_md5(x[col]), axis=1) 显示结果数据,df_data.head() 2. Polars测试 Polars...
{f:18}',end='' if i%5 else '\n') factorize nbytes between to_list str argsort rdivmod argmax tolist item is_monotonic_increasingdt autocorr is_monotonic_decreasingview repeat name array map dtype divmod to_frame unique ravel searchsorted hasnans is_unique is_monotonic cat argmin >>>...
Note python has this really weird error if you define local variable in a function same name as the global variable, program will promptUnboundLocalError. child class object overrides parent class methods input: classfruit:defprint(self):print('a')defeat(self):print('b')classapple(fruit):defpr...