best_sre = torch.tensor(0.)
时间: 2024-04-12 21:29:23 浏览: 25
我明白了,你想创建一个名为 "best_sre" 的变量,并将其值初始化为 0。你可以使用以下代码来实现:
```python
import torch
best_sre = torch.tensor(0.)
```
这将使用 PyTorch 创建一个名为 "best_sre" 的张量,并将其值初始化为 0.
相关问题
import re text_data = "Hello, World!" pattern = r"Hello" with open('binary_file.bin', 'wb') as file: file.write(text_data.encode()) file.write(text_data.encode()) file.write(text_data.encode()) file.write(text_data.encode()) with open('binary_file.bin', 'rb') as file: data = file.read() start_pos = 0 while True: match = re.search(pattern,data.decode(), start_pos) if match: print(f"Found at position {match.start()} - {match.end()}") start_pos = match.end() else: break 这段代码的运行结果如下,是为什么 Found at position 0 - 5 Traceback (most recent call last): File "C:\Users\LX\Desktop\00.py", line 16, in <module> match = re.search(pattern,data.decode(), start_pos) File "C:\Users\LX\AppData\Local\Programs\Python\Python310\lib\re.py", line 200, in search return _compile(pattern, flags).search(string) File "C:\Users\LX\AppData\Local\Programs\Python\Python310\lib\re.py", line 303, in _compile p = sre_compile.compile(pattern, flags) File "C:\Users\LX\AppData\Local\Programs\Python\Python310\lib\sre_compile.py", line 764, in compile p = sre_parse.parse(p, flags) File "C:\Users\LX\AppData\Local\Programs\Python\Python310\lib\sre_parse.py", line 958, in parse p.state.flags = fix_flags(str, p.state.flags) File "C:\Users\LX\AppData\Local\Programs\Python\Python310\lib\sre_parse.py", line 925, in fix_flags raise ValueError("cannot use LOCALE flag with a str pattern") ValueError: cannot use LOCALE flag with a str pattern
根据错误信息,报错是因为尝试在字符串模式上使用 LOCALE 标志。在这段代码中`re.search()` 函数的第二个参数应该是字节对象,而不是字符串。
解决这个问题的方法是将 `data` 变量从字节类型转换为字符串类型,并将 `pattern` 模式从字符串类型转换为字节字符串类型。
以下是修改后的代码:
```python
import re
text_data = "Hello, World!"
pattern = rb"Hello" # 将字符串模式转换为字节字符串模式
with open('binary_file.bin', 'wb') as file:
file.write(text_data.encode())
file.write(text_data.encode())
file.write(text_data.encode())
file.write(text_data.encode())
with open('binary_file.bin', 'rb') as file:
data = file.read()
start_pos = 0
while True:
match = re.search(pattern, data, start_pos)
if match:
print(f"Found at position {match.start()} - {match.end()}")
start_pos = match.end()
else:
break
```
在上述代码中,我们将 `pattern` 变量的类型更改为 `bytes`,即 `rb"Hello"`。另外,我们将 `data` 变量保持为字节对象,不再进行解码操作。这样就可以避免 LOCALE 标志的错误,并且能够正常运行 `re.search()` 函数来匹配多个位置。
Traceback (most recent call last): File "C:\Users\31222\AppData\Local\Programs\Python\Python38\lib\sre_parse.py", line 1039, in parse_template this = chr(ESCAPES[this][1]) KeyError: '\\I' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "D:\PythonProject\newProject\UpData_02.py", line 73, in <module> replacePluginPath(scriptpath, newpath) File "D:\PythonProject\newProject\UpData_02.py", line 55, in replacePluginPath updated_file_text = re.sub(pattern, f'"{newpath}"'+'\n', file_text) File "C:\Users\31222\AppData\Local\Programs\Python\Python38\lib\re.py", line 208, in sub return _compile(pattern, flags).sub(repl, string, count) File "C:\Users\31222\AppData\Local\Programs\Python\Python38\lib\re.py", line 325, in _subx template = _compile_repl(template, pattern) File "C:\Users\31222\AppData\Local\Programs\Python\Python38\lib\re.py", line 316, in _compile_repl return sre_parse.parse_template(repl, pattern) File "C:\Users\31222\AppData\Local\Programs\Python\Python38\lib\sre_parse.py", line 1042, in parse_template raise s.error('bad escape %s' % this, len(this)) re.error: bad escape \I at position 3 (line 1, column 4)
根据你提供的错误信息,看起来是在正则表达式中使用了一个无效的转义字符 `\I`,导致了 `re.error` 异常。
在正则表达式中,`\I` 不是一个有效的转义字符。如果你想要匹配具体的字符 `\I`,你可以在正则表达式中使用双反斜杠 `\\I`。
你可以尝试修改相关代码,将 `\I` 替换为 `\\I`,然后重新运行程序。这样应该能够解决这个错误。例如:
```python
updated_file_text = re.sub(pattern, f'"{newpath}"'+'\n', file_text)
```
改为:
```python
updated_file_text = re.sub(pattern, f'\\"{newpath}\\"'+'\n', file_text)
```
请确保在正则表达式中正确处理转义字符,以避免类似的错误。
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