Hi to all, i have truble with a upgrade of onionbox.

:~ % sudo pip install --upgrade theonionbox Password: Collecting theonionbox Using cached https://files.pythonhosted.org/packages/f6/90/bab164846bc3f59c2b05f9c15bcf62... Requirement already satisfied, skipping upgrade: psutil>=5.4.0 in /usr/local/lib/python2.7/site-packages (from theonionbox) (5.4.3) Requirement already satisfied, skipping upgrade: requests>2.18 in /usr/local/lib/python2.7/site-packages (from theonionbox) (2.18.4) Requirement already satisfied, skipping upgrade: PySocks>=1.6.7 in /usr/local/lib/python2.7/site-packages (from theonionbox) (1.6.8) Requirement already satisfied, skipping upgrade: bottle>=0.12.13 in /usr/local/lib/python2.7/site-packages (from theonionbox) (0.12.13) Requirement already satisfied, skipping upgrade: stem<=1.6,>=1.5.4 in /usr/local/lib/python2.7/site-packages (from theonionbox) (1.6.0) Requirement already satisfied, skipping upgrade: tzlocal>=1.5 in /usr/local/lib/python2.7/site-packages (from theonionbox) (1.5.1) Requirement already satisfied, skipping upgrade: urllib3>=1.22 in /usr/local/lib/python2.7/site-packages (from theonionbox) (1.22) Requirement already satisfied, skipping upgrade: apscheduler<3.*,>=2.1.2 in /usr/local/lib/python2.7/site-packages (from theonionbox) (2.1.2) Requirement already satisfied, skipping upgrade: futures>=3.2 in /usr/local/lib/python2.7/site-packages (from theonionbox) (3.2.0) Requirement already satisfied, skipping upgrade: chardet<3.1.0,>=3.0.2 in /usr/local/lib/python2.7/site-packages (from requests>2.18->theonionbox) (3.0.4) Requirement already satisfied, skipping upgrade: certifi>=2017.4.17 in /usr/local/lib/python2.7/site-packages (from requests>2.18->theonionbox) (2017.11.5) Collecting idna<2.7,>=2.5 (from requests>2.18->theonionbox) Downloading https://files.pythonhosted.org/packages/27/cc/6dd9a3869f15c2edfab863b9928382... (56kB) 100% |################################| 61kB 1.4MB/s Requirement already satisfied, skipping upgrade: pytz in /usr/local/lib/python2.7/site-packages (from tzlocal>=1.5->theonionbox) (2017.3) Installing collected packages: theonionbox, idna Found existing installation: theonionbox 4.1 Uninstalling theonionbox-4.1: Successfully uninstalled theonionbox-4.1 Error unknown encoding: string-escape while executing command /usr/local/bin/python2.7 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-6jsgKW/theonionbox/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-saoyTd/install-record.txt --single-version-externally-managed --compile Running setup.py install for theonionbox ... error Rolling back uninstall of theonionbox Exception: Traceback (most recent call last): File "/usr/local/lib/python2.7/site-packages/pip/_internal/cli/base_command.py", line 143, in main status = self.run(options, args) File "/usr/local/lib/python2.7/site-packages/pip/_internal/commands/install.py", line 366, in run use_user_site=options.use_user_site, File "/usr/local/lib/python2.7/site-packages/pip/_internal/req/__init__.py", line 49, in install_given_reqs **kwargs File "/usr/local/lib/python2.7/site-packages/pip/_internal/req/req_install.py", line 791, in install spinner=spinner, File "/usr/local/lib/python2.7/site-packages/pip/_internal/utils/misc.py", line 659, in call_subprocess stdout=stdout, cwd=cwd, env=env, File "/usr/local/lib/python2.7/subprocess.py", line 394, in __init__ errread, errwrite) File "/usr/local/lib/python2.7/subprocess.py", line 1046, in _execute_child child_exception = pickle.loads(data) File "/usr/local/lib/python2.7/pickle.py", line 1388, in loads return Unpickler(file).load() File "/usr/local/lib/python2.7/pickle.py", line 864, in load dispatch[key](self) File "/usr/local/lib/python2.7/pickle.py", line 977, in load_string self.append(rep.decode("string-escape")) LookupError: unknown encoding: string-escape