(vpy35) C:/Users/John>conda install qt -vFetching package metadata .............Solving package specifications: .Package plan for installation in environment C:/Anaconda3/envs/vpy35:The following NEW packages will be INSTALLED: qt: 5.6.2-vc14_3 [vc14]PRoceed ([y]/n)?()===> LINKING PACKAGE: defaults::qt-5.6.2-vc14_3 <=== prefix=C:/Anaconda3/envs/vpy35 source=C:/Anaconda3/pkgs/qt-5.6.2-vc14_3An error occurred while installing package 'defaults::qt-5.6.2-vc14_3'.UnicodeDecodeError('utf-8', b'/xd2/xd1/xb8/xb4/xd6/xc6 1 /xb8/xf6/xce/xc4/xbc/xfe/xa1/xa3/r/n', 0, 1, 'invalid continuation byte')Attempting to roll back.===> REVERSING PACKAGE LINK: defaults::qt-5.6.2-vc14_3 <=== prefix=C:/Anaconda3/envs/vpy35An unexpected error has occurred.Please consider posting the following information to theconda GitHub issue tracker at: https://github.com/conda/conda/issuesovertaking stderr and stdoutstderr and stdout yielding backCurrent conda install: platform : win-64 conda version : 4.3.9 conda is private : False conda-env version : 4.3.9 conda-build version : not installed python version : 3.6.0.final.0 requests version : 2.12.4 root environment : C:/Anaconda3 (writable) default environment : C:/Anaconda3/envs/vpy35 envs directories : C:/Anaconda3/envs package cache : C:/Anaconda3/pkgs channel URLs : https://conda.anaconda.org/anaconda-fusion/win-64 https://conda.anaconda.org/anaconda-fusion/noarch https://repo.continuum.io/pkgs/free/win-64 https://repo.continuum.io/pkgs/free/noarch https://repo.continuum.io/pkgs/r/win-64 https://repo.continuum.io/pkgs/r/noarch https://repo.continuum.io/pkgs/pro/win-64 https://repo.continuum.io/pkgs/pro/noarch https://repo.continuum.io/pkgs/msys2/win-64 https://repo.continuum.io/pkgs/msys2/noarch config file : C:/Users/John/.condarc offline mode : False user-agent : conda/4.3.9 requests/2.12.4 CPython/3.6.0 Windows/7 Windows/6.1.7601`$ C:/Anaconda3/Scripts/conda-script.py install qt -v` Traceback (most recent call last): File "C:/Anaconda3/lib/site-packages/conda/core/link.py", line 309, in _execute_actions run_script(target_prefix, Dist(pkg_data), 'post-unlink' if is_unlink else 'post-link') File "C:/Anaconda3/lib/site-packages/conda/core/link.py", line 480, in run_script subprocess_call(command_args, env=env) File "C:/Anaconda3/lib/site-packages/conda/gateways/subprocess.py", line 61, in subprocess_call return Response(ensure_text_type(stdout), ensure_text_type(stderr), int(rc)) File "C:/Anaconda3/lib/site-packages/conda/common/compat.py", line 155, in ensure_text_type return value.decode('utf-8') if hasattr(value, 'decode') else value UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd2 in position 0: invalid continuation byte During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:/Anaconda3/lib/site-packages/conda/core/link.py", line 262, in execute pkg_data, actions) File "C:/Anaconda3/lib/site-packages/conda/core/link.py", line 326, in _execute_actions reverse_excs, conda.CondaMultiError: 'utf-8' codec can't decode byte 0xd2 in position 0: invalid continuation byte During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:/Anaconda3/lib/site-packages/conda/exceptions.py", line 616, in conda_exception_handler return_value = func(*args, **kwargs) File "C:/Anaconda3/lib/site-packages/conda/cli/main.py", line 137, in _main exit_code = args.func(args, p) File "C:/Anaconda3/lib/site-packages/conda/cli/main_install.py", line 80, in execute install(args, parser, 'install') File "C:/Anaconda3/lib/site-packages/conda/cli/install.py", line 359, in install execute_actions(actions, index, verbose=not context.quiet) File "C:/Anaconda3/lib/site-packages/conda/plan.py", line 837, in execute_actions execute_instructions(plan, index, verbose) File "C:/Anaconda3/lib/site-packages/conda/instructions.py", line 258, in execute_instructions cmd(state, arg) File "C:/Anaconda3/lib/site-packages/conda/instructions.py", line 119, in UNLINKLINKTRANSACTION_CMD txn.execute() File "C:/Anaconda3/lib/site-packages/conda/core/link.py", line 278, in execute rollback_excs, conda.CondaMultiError: 'utf-8' codec can't decode byte 0xd2 in position 0: invalid continuation byte報錯的代碼為File "C:/Anaconda3/lib/site-packages/conda/core/link.py", line 278, in execute
def execute(self): if not self._verified: self.verify() pkg_idx = 0 try: for pkg_idx, (pkg_data, actions) in enumerate(self.all_actions): self._execute_actions(self.target_prefix, self.num_unlink_pkgs, pkg_idx, pkg_data, actions) except Exception as execute_multi_exc: # reverse all executed packages except the one that failed rollback_excs = [] if context.rollback_enabled: failed_pkg_idx = pkg_idx reverse_actions = self.all_actions[:failed_pkg_idx] for pkg_idx, (pkg_data, actions) in reversed(tuple(enumerate(reverse_actions))): excs = self._reverse_actions(self.target_prefix, self.num_unlink_pkgs, pkg_idx, pkg_data, actions) rollback_excs.extend(excs) raise CondaMultiError(tuple(concatv( (execute_multi_exc.errors if isinstance(execute_multi_exc, CondaMultiError) else (execute_multi_exc,)), rollback_excs, ))) else: for pkg_idx, (pkg_data, actions) in enumerate(self.all_actions): for axn_idx, action in enumerate(actions): action.cleanup()跟蹤函數_execute_actions@staticmethod def _execute_actions(target_prefix, num_unlink_pkgs, pkg_idx, pkg_data, actions): axn_idx, action, is_unlink = 0, None, True try: dist = Dist(pkg_data) is_unlink = pkg_idx <= num_unlink_pkgs - 1 if is_unlink: log.info("===> UNLINKING PACKAGE: %s <===/n" " prefix=%s/n", dist, target_prefix) else: log.info("===> LINKING PACKAGE: %s <===/n" " prefix=%s/n" " source=%s/n", dist, target_prefix, pkg_data.extracted_package_dir) run_script(target_prefix if is_unlink else pkg_data.extracted_package_dir, Dist(pkg_data), 'pre-unlink' if is_unlink else 'pre-link', target_prefix) for axn_idx, action in enumerate(actions): action.execute() run_script(target_prefix, Dist(pkg_data), 'post-unlink' if is_unlink else 'post-link') except Exception as e: # this won't be a multi error # reverse this package log.debug("Error in action #%d for pkg_idx #%d %r", axn_idx, pkg_idx, action) log.debug(format_exc()) reverse_excs = () if context.rollback_enabled: log.error("An error occurred while %s package '%s'./n" "%r/n" "Attempting to roll back./n", 'uninstalling' if is_unlink else 'installing', Dist(pkg_data), e) reverse_excs = UnlinkLinkTransaction._reverse_actions( target_prefix, num_unlink_pkgs, pkg_idx, pkg_data, actions, reverse_from_idx=axn_idx ) raise CondaMultiError(tuple(concatv( (e,), reverse_excs, )))跟蹤函數run_script錯誤是由執行了.qt-post-link.bat后產生
def run_script(prefix, dist, action='post-link', env_prefix=None): """ call the post-link (or pre-unlink) script, and return True on success, False on failure """ path = join(prefix, 'Scripts' if on_win else 'bin', '.%s-%s.%s' % (dist.name, action, 'bat' if on_win else 'sh')) if not isfile(path): return True env = os.environ.copy() if action == 'pre-link': is_old_noarch = False try: with open(path) as f: script_text = ensure_text_type(f.read()) if "This is code that is added to noarch Python packages." in script_text: is_old_noarch = True except Exception as e: import traceback log.debug(e) log.debug(traceback.format_exc()) env['SOURCE_DIR'] = prefix if not is_old_noarch: warnings.warn(dals(""" Package %s uses a pre-link script. Pre-link scripts are potentially dangerous. This is because pre-link scripts have the ability to change the package contents in the package cache, and therefore modify the underlying files for already-created conda environments. Future versions of conda may deprecate and ignore pre-link scripts. """ % dist)) if on_win: try: command_args = [os.environ[str('COMSPEC')], '/c', path] except KeyError: log.info("failed to run %s for %s due to COMSPEC KeyError", action, dist) return False else: shell_path = '/bin/sh' if 'bsd' in sys.platform else '/bin/bash' command_args = [shell_path, "-x", path] env['ROOT_PREFIX'] = context.root_prefix env['PREFIX'] = env_prefix or prefix env['PKG_NAME'] = dist.name env['PKG_VERSION'] = dist.version env['PKG_BUILDNUM'] = dist.build_number try: log.debug("for %s at %s, executing script: $ %s", dist, env['PREFIX'], ' '.join(command_args)) subprocess_call(command_args, env=env) except CalledProcessError as e: m = messages(prefix) if action in ('pre-link', 'post-link'): if 'openssl' in text_type(dist): # this is a hack for conda-build string parsing in the conda_build/build.py # create_env function message = "%s failed for: %s" % (action, dist) else: message = dals(""" %s script failed for package %s running your command again with `-v` will provide additional information location of failed script: %s ==> script messages <== %s """) % (action, dist, path, m or "<None>") raise LinkError(message) else: log.warn("%s script failed for package %s/n" "consider notifying the package maintainer", action, dist) return False else: messages(prefix) return True跟蹤函數subprocess_call在文件C:/Anaconda3/Lib/site-packages/conda/gateways/subprocess.py中
def subprocess_call(command, env=None, path=None, stdin=None, raise_on_error=True): """This utility function should be preferred for all conda subprocessing. It handles multiple tricky details. """ env = {str(k): str(v) for k, v in iteritems(env if env else os.environ)} path = sys.prefix if path is None else abspath(path) log.debug("executing>> %s", ' '.join(command)) p = Popen(_split_on_unix(command) if isinstance(command, string_types) else command, cwd=path, stdin=PIPE, stdout=PIPE, stderr=PIPE, env=env) ACTIVE_SUBPROCESSES.add(p) stdin = ensure_binary(stdin) if isinstance(stdin, string_types) else None stdout, stderr = p.communicate(input=stdin) rc = p.returncode ACTIVE_SUBPROCESSES.remove(p) if raise_on_error and rc != 0: log.info(_format_output(command, path, rc, stdout, stderr)) raise CalledProcessError(rc, command, output=_format_output(command, path, rc, stdout, stderr)) if log.isEnabledFor(TRACE): log.trace(_format_output(command, path, rc, stdout, stderr)) return Response(ensure_text_type(stdout), ensure_text_type(stderr), int(rc))錯誤由ensure_text_type(stdout)導致C:/Anaconda3/Lib/site-packages/conda/common/compat.py
def ensure_text_type(value): return value.decode('utf-8') if hasattr(value, 'decode') else valuestdout輸出為b'/xd2/xd1/xb8/xb4/xd6/xc6 1 /xb8/xf6/xce/xc4/xbc/xfe/xa1/xa3/r/n'在將其使用utf-8解碼時產生異常UnicodeDecodeError在函數subprocess_call最后使用來避免此錯誤
try: return Response(ensure_text_type(stdout), ensure_text_type(stderr), int(rc)) except Exception as e: return Response((stdout), (stderr), int(rc))
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