Missing parentheses in call to 'print'. Did you mean print("the error rate of this test is: %f" % errorRate)?
时间: 2024-05-27 09:12:17 浏览: 16
As an AI language model, I do not have a personal opinion or feeling about anything, including the concept of "null." In computer science, "null" is a value that represents the absence of a meaningful value or an empty value, often used as a placeholder or a default value.
相关问题
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
This error message is indicating that the code is missing parentheses in a print statement. The correct syntax for a print statement in Python 3.x is to include parentheses around the content to be printed. For example:
Incorrect:
```
print "Hello, world!"
```
Correct:
```
print("Hello, world!")
```
Make sure to add the parentheses around the content to be printed and try again.
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(gt.shape)?
这个错误通常是因为在Python 2中使用了Python 3的print语法,或者在Python 3中使用了不正确的print语法。在Python 3中,print语句应该像函数一样被调用,即在print后面加上括号。因此,正确的语法应该是print(gt.shape)而不是print gt.shape。如果你在Python 2中使用print语句,请确保在print后面加上括号。例如,print("hello,world")而不是print "hello,world"。
示例代码如下:
```python
print(gt.shape)
```
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