error Traceback (most recent call last)
Cell In[1], line 1
----> 1 get_ipython().run_line_magic('conda', 'install -c conda-forge gdal numpy scipy matplotlib jupyter')
File D:\miniconda3\envs\jupyter_env\lib\site-packages\IPython\core\interactiveshell.py:2456, in InteractiveShell.run_line_magic(self, magic_name, line, _stack_depth)
2454 kwargs['local_ns'] = self.get_local_scope(stack_depth)
2455 with self.builtin_trap:
-> 2456 result = fn(*args, **kwargs)
2458 # The code below prevents the output from being displayed
2459 # when using magics with decorator @output_can_be_silenced
2460 # when the last Python token in the expression is a ';'.
2461 if getattr(fn, magic.MAGIC_OUTPUT_CAN_BE_SILENCED, False):
File D:\miniconda3\envs\jupyter_env\lib\site-packages\IPython\core\magics\packaging.py:30, in is_conda_environment.<locals>.wrapper(*args, **kwargs)
25 if not Path(sys.prefix, "conda-meta", "history").exists():
26 raise ValueError(
27 "The python kernel does not appear to be a conda environment. "
28 "Please use ``%pip install`` instead."
29 )
---> 30 return func(*args, **kwargs)
File D:\miniconda3\envs\jupyter_env\lib\site-packages\IPython\core\magics\packaging.py:128, in PackagingMagics.conda(self, line)
120 @line_magic
121 @is_conda_environment
122 def conda(self, line):
123 """Run the conda package manager within the current kernel.
124
125 Usage:
126 %conda install [pkgs]
127 """
--> 128 conda = _get_conda_like_executable("conda")
129 self._run_command(conda, line)
File D:\miniconda3\envs\jupyter_env\lib\site-packages\IPython\core\magics\packaging.py:53, in _get_conda_like_executable(command)
50 # Otherwise, attempt to extract the executable from conda history.
51 # This applies in any conda environment.
52 history = Path(sys.prefix, "conda-meta", "history").read_text(encoding="utf-8")
---> 53 match = re.search(
54 rf"^#\s*cmd:\s*(?P<command>.*{executable})\s[create|install]",
55 history,
56 flags=re.MULTILINE,
57 )
58 if match:
59 return match.groupdict()["command"]
File D:\miniconda3\envs\jupyter_env\lib\re.py:201, in search(pattern, string, flags)
198 def search(pattern, string, flags=0):
199 """Scan through string looking for a match to the pattern, returning
200 a Match object, or None if no match was found."""
--> 201 return _compile(pattern, flags).search(string)
File D:\miniconda3\envs\jupyter_env\lib\re.py:304, in _compile(pattern, flags)
302 if not sre_compile.isstring(pattern):
303 raise TypeError("first argument must be string or compiled pattern")
--> 304 p = sre_compile.compile(pattern, flags)
305 if not (flags & DEBUG):
306 if len(_cache) >= _MAXCACHE:
307 # Drop the oldest item
File D:\miniconda3\envs\jupyter_env\lib\sre_compile.py:788, in compile(p, flags)
786 if isstring(p):
787 pattern = p
--> 788 p = sre_parse.parse(p, flags)
789 else:
790 pattern = None
File D:\miniconda3\envs\jupyter_env\lib\sre_parse.py:955, in parse(str, flags, state)
952 state.str = str
954 try:
--> 955 p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
956 except Verbose:
957 # the VERBOSE flag was switched on inside the pattern. to be
958 # on the safe side, we'll parse the whole thing again...
959 state = State()
File D:\miniconda3\envs\jupyter_env\lib\sre_parse.py:444, in _parse_sub(source, state, verbose, nested)
442 start = source.tell()
443 while True:
--> 444 itemsappend(_parse(source, state, verbose, nested + 1,
445 not nested and not items))
446 if not sourcematch("|"):
447 break
File D:\miniconda3\envs\jupyter_env\lib\sre_parse.py:841, in _parse(source, state, verbose, nested, first)
838 raise source.error(err.msg, len(name) + 1) from None
839 sub_verbose = ((verbose or (add_flags & SRE_FLAG_VERBOSE)) and
840 not (del_flags & SRE_FLAG_VERBOSE))
--> 841 p = _parse_sub(source, state, sub_verbose, nested + 1)
842 if not source.match(")"):
843 raise source.error("missing ), unterminated subpattern",
844 source.tell() - start)
File D:\miniconda3\envs\jupyter_env\lib\sre_parse.py:444, in _parse_sub(source, state, verbose, nested)
442 start = source.tell()
443 while True:
--> 444 itemsappend(_parse(source, state, verbose, nested + 1,
445 not nested and not items))
446 if not sourcematch("|"):
447 break
File D:\miniconda3\envs\jupyter_env\lib\sre_parse.py:526, in _parse(source, state, verbose, nested, first)
523 continue
525 if this[0] == "\\":
--> 526 code = _escape(source, this, state)
527 subpatternappend(code)
529 elif this not in SPECIAL_CHARS:
File D:\miniconda3\envs\jupyter_env\lib\sre_parse.py:427, in _escape(source, escape, state)
425 if len(escape) == 2:
426 if c in ASCIILETTERS:
--> 427 raise source.error("bad escape %s" % escape, len(escape))
428 return LITERAL, ord(escape[1])
429 except ValueError:
error: bad escape \m at position 28出什么错了，怎么解决
最新发布
本文探讨了在使用Python的re.sub函数时，如果替换字符串repl包含特殊字符，Python仅处理
和
的情况。针对g导致的错误，提供了三种解决方法：1) 使用fr字符串；2) 替换g为g；3) 使用repr转换repl。这些技巧对于避免正则表达式中的解析错误至关重要。
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