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Config of pyquil gives a syntax error

See original GitHub issue

I am running Ubuntu version 16.04 installed via crouton on an acer chromebook 11. I followed the docs and did pip install pyquil, which ran successfully, and then I ran pyquil-config-setup which gave the following:

Traceback (most recent call last):
  File "/home/physicsnerd/.local/bin/pyquil-config-setup", line 7, in <module>
    from pyquil.setup.pyquil_config_setup import main
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/pyquil/setup/pyquil_config_setup.py", line 19, in <module>
    from pyquil.api._config import PyquilConfig
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/pyquil/api/__init__.py", line 23, in <module>
    from pyquil.api.job import Job
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/pyquil/api/job.py", line 21, in <module>
    from pyquil.parser import parse_program
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/pyquil/parser.py", line 19, in <module>
    from pyquil.quil import Program
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/pyquil/quil.py", line 26, in <module>
    from pyquil._parser.PyQuilListener import run_parser
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/pyquil/_parser/PyQuilListener.py", line 23, in <module>
    from antlr4 import *
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/antlr4/__init__.py", line 1, in <module>
    from antlr4.Token import Token
  File "/home/physicsnerd/.local/lib/python2.7/site-packages/antlr4/Token.py", line 59
    def text(self, text:str):
                       ^
SyntaxError: invalid syntax

This is what running pip install pyquil gave for output (it seemed to run successfully; I’m only putting this here just in case it is useful):

Collecting pyquil
  Downloading pyquil-1.6.2.tar.gz (73kB)
    100% |################################| 81kB 719kB/s 
Collecting requests>=2.4.2 (from pyquil)
  Using cached requests-2.18.4-py2.py3-none-any.whl
Collecting numpy>=1.10 (from pyquil)
  Downloading numpy-1.13.3-cp27-cp27mu-manylinux1_x86_64.whl (16.6MB)
    100% |################################| 16.7MB 32kB/s 
Collecting matplotlib>=1.5 (from pyquil)
  Downloading matplotlib-2.1.1-cp27-cp27mu-manylinux1_x86_64.whl (15.0MB)
    100% |################################| 15.0MB 21kB/s 
Collecting typing>=3.6 (from pyquil)
  Downloading typing-3.6.2-py2-none-any.whl
Collecting urllib3>=1.21.1 (from pyquil)
  Using cached urllib3-1.22-py2.py3-none-any.whl
Collecting antlr4-python2-runtime>=4.7; python_version < "3" (from pyquil)
  Downloading antlr4-python2-runtime-4.7.1.tar.gz (111kB)
    100% |################################| 112kB 751kB/s 
Collecting antlr4-python3-runtime>=4.7; python_version >= "3" (from pyquil)
  Downloading antlr4-python3-runtime-4.7.1.tar.gz (111kB)
    100% |################################| 112kB 1.3MB/s 
Collecting idna<2.7,>=2.5 (from requests>=2.4.2->pyquil)
  Using cached idna-2.6-py2.py3-none-any.whl
Collecting chardet<3.1.0,>=3.0.2 (from requests>=2.4.2->pyquil)
  Using cached chardet-3.0.4-py2.py3-none-any.whl
Collecting certifi>=2017.4.17 (from requests>=2.4.2->pyquil)
  Downloading certifi-2017.11.5-py2.py3-none-any.whl (330kB)
    100% |################################| 337kB 902kB/s 
Collecting cycler>=0.10 (from matplotlib>=1.5->pyquil)
  Downloading cycler-0.10.0-py2.py3-none-any.whl
Collecting six>=1.10 (from matplotlib>=1.5->pyquil)
  Downloading six-1.11.0-py2.py3-none-any.whl
Collecting pytz (from matplotlib>=1.5->pyquil)
  Downloading pytz-2017.3-py2.py3-none-any.whl (511kB)
    100% |################################| 512kB 736kB/s 
Collecting subprocess32 (from matplotlib>=1.5->pyquil)
  Downloading subprocess32-3.2.7.tar.gz (54kB)
    100% |################################| 61kB 2.7MB/s 
Collecting python-dateutil>=2.0 (from matplotlib>=1.5->pyquil)
  Downloading python_dateutil-2.6.1-py2.py3-none-any.whl (194kB)
    100% |################################| 194kB 1.8MB/s 
Collecting backports.functools-lru-cache (from matplotlib>=1.5->pyquil)
  Downloading backports.functools_lru_cache-1.4-py2.py3-none-any.whl
Collecting pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 (from matplotlib>=1.5->pyquil)
  Downloading pyparsing-2.2.0-py2.py3-none-any.whl (56kB)
    100% |################################| 61kB 2.8MB/s 
Building wheels for collected packages: pyquil, antlr4-python2-runtime, antlr4-python3-runtime, subprocess32
  Running setup.py bdist_wheel for pyquil ... done
  Stored in directory: /home/physicsnerd/.cache/pip/wheels/ac/f0/65/9c2117811f8a77d4f6c549b9741f324cb9e7ed55e85ec195a4
  Running setup.py bdist_wheel for antlr4-python2-runtime ... done
  Stored in directory: /home/physicsnerd/.cache/pip/wheels/a6/43/d3/18b2ff3978bdc7bec8aa963e85dbc569c8ef4bd290f40017fa
  Running setup.py bdist_wheel for antlr4-python3-runtime ... done
  Stored in directory: /home/physicsnerd/.cache/pip/wheels/12/ef/55/3d28ddbef18ae00a21e1ef4ae367e5ada2a24ffb4ea3b927cd
  Running setup.py bdist_wheel for subprocess32 ... done
  Stored in directory: /home/physicsnerd/.cache/pip/wheels/7d/4c/a4/ce9ceb463dae01f4b95e670abd9afc8d65a45f38012f8030cc
Successfully built pyquil antlr4-python2-runtime antlr4-python3-runtime subprocess32
Installing collected packages: urllib3, idna, chardet, certifi, requests, numpy, six, cycler, pytz, subprocess32, python-dateutil, backports.functools-lru-cache, pyparsing, matplotlib, typing, antlr4-python2-runtime, antlr4-python3-runtime, pyquil
Successfully installed antlr4-python2-runtime-4.7.1 antlr4-python3-runtime-4.7.1 backports.functools-lru-cache-1.4 certifi-2017.11.5 chardet-3.0.4 cycler-0.10.0 idna-2.6 matplotlib-2.1.1 numpy-1.13.3 pyparsing-2.2.0 pyquil-1.6.2 python-dateutil-2.6.1 pytz-2017.3 requests-2.18.4 six-1.10.0 subprocess32-3.2.7 typing-3.6.2 urllib3-1.22