pipenv 2018.10.9 fails to install dogpile.cache (mark the dot)

[hroncok]

Issue description

If dogpile.cache is in Pipefile(.lock) or if you try to pipenv install it, pipenv 2018.10.9 tries to install dogpile-cache and fails.

Expected result

Installs dogpile.cache.

Actual result

An error occurred while installing dogpile-cache==0.6.5 --hash=sha256:631197e78b4471bb0e93d0a86264c45736bc9ae43b4205d581dcc34fbe9b5f31! Will try again.
Installing initially failed dependencies…
Collecting dogpile-cache==0.6.5 
  Could not find a version that satisfies the requirement dogpile-cache==0.6.5 (from -r /tmp/pipenv-4u4ixf4v-requirements/pipenv-5zh451ms-requirement.txt (line 1)) (from versions: )
No matching distribution found for dogpile-cache==0.6.5 (from -r /tmp/pipenv-4u4ixf4v-requirements/pipenv-5zh451ms-requirement.txt (line 1))

Steps to replicate

Provide the steps to replicate (which usually at least includes the commands and the Pipfile).

$ python3.7 -m venv __venv__
$ . __venv__/bin/activate
(__venv__) $ pip --version
pip 18.0 from ...tmp/__venv__/lib64/python3.7/site-packages/pip (python 3.7)
(__venv__) $ pip install pipenv==2018.10.9
...
Successfully installed certifi-2018.8.24 pipenv-2018.10.9 virtualenv-16.0.0 virtualenv-clone-0.3.0
You are using pip version 18.0, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
(__venv__) $ pipenv install dogpile.cache
Installing dogpile.cache…
Collecting dogpile-cache

Error:  An error occurred while installing dogpile.cache!
  Could not find a version that satisfies the requirement dogpile-cache (from versions: )
No matching distribution found for dogpile-cache
You are using pip version 18.0, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

However:

$ python3.7 -m venv __venv__
$ . __venv__/bin/activate
(__venv__) $ pip --version
pip 18.0 from ...tmp/__venv__/lib64/python3.7/site-packages/pip (python 3.7)
(__venv__) $ pip install 'pipenv<2018.10.9'
...
Successfully installed certifi-2018.8.24 pipenv-2018.7.1 virtualenv-16.0.0 virtualenv-clone-0.3.0
You are using pip version 18.0, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
(__venv__) $ pipenv install dogpile.cache
Installing dogpile.cache...
Collecting dogpile.cache
  Downloading https://files.pythonhosted.org/packages/ee/bd/440da735a11c6087eed7cc8747fc4b995cbac2464168682f8ee1c8e43844/dogpile.cache-0.6.7.tar.gz (323kB)
Installing collected packages: dogpile.cache
  Running setup.py install for dogpile.cache: started
    Running setup.py install for dogpile.cache: finished with status 'done'
Successfully installed dogpile.cache-0.6.7

Adding dogpile.cache to Pipfile's [packages]...
Pipfile.lock not found, creating...
Locking [dev-packages] dependencies...
Locking [packages] dependencies...
Updated Pipfile.lock (528fa6)!
Installing dependencies from Pipfile.lock (528fa6)...
  🐍   ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 1/1 — 0

---

$ pipenv --support

Pipenv version: '2018.10.9'

Pipenv location: '/home/churchyard/tmp/__venv__/lib64/python3.7/site-packages/pipenv'

Python location: '/home/churchyard/tmp/__venv__/bin/python3.7'

Python installations found:

• 3.7.0: /usr/bin/python3.7
• 3.7.0: /usr/bin/python3.7m
• 3.6.6: /usr/bin/python3.6m
• 3.6.6: /usr/bin/python3.6
• 3.5.6: /usr/bin/python3.5m
• 3.5.6: /usr/bin/python3.5
• 3.4.9: /usr/bin/python3.4
• 3.4.9: /usr/bin/python3.4m
• 2.7.15: /usr/bin/python2.7
• 2.6.9: /usr/bin/python2.6

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.7.0',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '4.18.7-300.fc29.x86_64',
 'platform_system': 'Linux',
 'platform_version': '#1 SMP Mon Sep 10 15:37:17 UTC 2018',
 'python_full_version': '3.7.0',
 'python_version': '3.7',
 'sys_platform': 'linux'}

System environment variables:

• LS_COLORS
• GIT_PS1_SHOWUNTRACKEDFILES
• XDG_MENU_PREFIX
• LANG
• HISTCONTROL
• DISPLAY
• GUESTFISH_RESTORE
• HOSTNAME
• OLDPWD
• COLORTERM
• GUESTFISH_INIT
• XDG_VTNR
• CVSROOT
• SSH_AUTH_SOCK
• VIRTUAL_ENV
• GLADE_CATALOG_PATH
• XDG_SESSION_ID
• XDG_GREETER_DATA_DIR
• USER
• GLADE_MODULE_PATH
• GUESTFISH_PS1
• DESKTOP_SESSION
• VAGRANT_DEFAULT_PROVIDER
• PWD
• SSH_ASKPASS
• HOME
• GIT_PS1_SHOWDIRTYSTATE
• SSH_AGENT_PID
• XDG_SESSION_TYPE
• XDG_DATA_DIRS
• AUTOJUMP_ERROR_PATH
• XDG_SESSION_DESKTOP
• GLADE_PIXMAP_PATH
• _JAVA_OPTIONS
• MAIL
• AUTOJUMP_SOURCED
• TERM
• SHELL
• VTE_VERSION
• GNOME_KEYRING_CONTROL
• XDG_SEAT_PATH
• XDG_CURRENT_DESKTOP
• SHLVL
• XDG_SEAT
• WINDOWID
• GDMSESSION
• LOGNAME
• DBUS_SESSION_BUS_ADDRESS
• XDG_RUNTIME_DIR
• XAUTHORITY
• XDG_SESSION_PATH
• XDG_CONFIG_DIRS
• PATH
• GUESTFISH_OUTPUT
• PS1
• HISTSIZE
• SESSION_MANAGER
• CVS_RSH
• LESSOPEN
• _
• PYTHONDONTWRITEBYTECODE
• PIP_SHIMS_BASE_MODULE
• PIP_PYTHON_PATH

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: /home/churchyard/tmp/__venv__/bin:/home/churchyard/.local/bin:/home/churchyard/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin
• SHELL: /bin/bash
• LANG: cs_CZ.utf8
• PWD: /home/churchyard/tmp
• VIRTUAL_ENV: /home/churchyard/tmp/__venv__

---

Contents of Pipfile ('/home/churchyard/tmp/Pipfile'):

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
"dogpile.cache" = "*"

[dev-packages]

[requires]
python_version = "3.6"

Contents of Pipfile.lock ('/home/churchyard/tmp/Pipfile.lock'):

{
    "_meta": {
        "hash": {
            "sha256": "b20c80e9226eb9984f90c1465567e9dbc0504ea4850762e2604493b86e528fa6"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.6"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "dogpile.cache": {
            "hashes": [
                "sha256:fca7deb7c276b879b01c15c5d39b3c05701dc43b263ec3fef1e52cb851cf88ab"
            ],
            "index": "pypi",
            "version": "==0.6.7"
        }
    },
    "develop": {}
}

[hroncok]

This is #2956