Locking is slow (and performs redundant downloads)

Is this an issue with my installation? It happens on all of my machines… Is there anything I/we can do to speed it up?

I install one package and the locking seems to take minutes.

Locking [packages] dependencies…

$ python -m pipenv.help output

Pipenv version: '2018.05.18'

Pipenv location: '/Users/colllin/miniconda3/lib/python3.6/site-packages/pipenv'

Python location: '/Users/colllin/miniconda3/bin/python'

Other Python installations in PATH:

• 2.7: /usr/bin/python2.7

• 2.7: /usr/bin/python2.7

• 3.6: /Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6m

• 3.6: /Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6

• 3.6: /Users/colllin/miniconda3/bin/python3.6

• 3.6: /Users/colllin/.pyenv/shims/python3.6

• 3.6: /usr/local/bin/python3.6

• 3.6.3: /Users/colllin/miniconda3/bin/python

• 3.6.3: /Users/colllin/.pyenv/shims/python

• 2.7.10: /usr/bin/python

• 3.6.4: /Library/Frameworks/Python.framework/Versions/3.6/bin/python3

• 3.6.3: /Users/colllin/miniconda3/bin/python3

• 3.6.4: /Users/colllin/.pyenv/shims/python3

• 3.6.4: /usr/local/bin/python3

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.6.3',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '17.5.0',
 'platform_system': 'Darwin',
 'platform_version': 'Darwin Kernel Version 17.5.0: Mon Mar  5 22:24:32 PST '
                     '2018; root:xnu-4570.51.1~1/RELEASE_X86_64',
 'python_full_version': '3.6.3',
 'python_version': '3.6',
 'sys_platform': 'darwin'}

System environment variables:

• TERM_PROGRAM
• NVM_CD_FLAGS
• TERM
• SHELL
• TMPDIR
• Apple_PubSub_Socket_Render
• TERM_PROGRAM_VERSION
• TERM_SESSION_ID
• NVM_DIR
• USER
• SSH_AUTH_SOCK
• PYENV_VIRTUALENV_INIT
• PATH
• PWD
• LANG
• XPC_FLAGS
• PS1
• XPC_SERVICE_NAME
• PYENV_SHELL
• HOME
• SHLVL
• DRAM_ROOT
• LOGNAME
• NVM_BIN
• SECURITYSESSIONID
• _
• __CF_USER_TEXT_ENCODING
• PYTHONDONTWRITEBYTECODE
• PIP_PYTHON_PATH

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: /Library/Frameworks/Python.framework/Versions/3.6/bin:/Users/colllin/miniconda3/bin:/Users/colllin/.pyenv/plugins/pyenv-virtualenv/shims:/Users/colllin/.pyenv/shims:/Users/colllin/.pyenv/bin:/Users/colllin/.nvm/versions/node/v8.1.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
• SHELL: /bin/bash
• LANG: en_US.UTF-8
• PWD: /Users/.../folder

---

Contents of Pipfile (‘/Users/…/Pipfile’):

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

[packages]
gym-retro = "*"

[dev-packages]

[requires]
python_version = "3.6"

[ushuz]

I noticed that lock was really slow and downloaded huge amount of data from files.pythonhosted.org, more than 800MB for a small project that depends on scipy flask etc.

So I sniffed the requests made to files.pythonhosted.org, and it turns out that pip or pipenv were doing completely unnecessary downloads, which makes lock painfully slow.

For example, same version numpy had been downloaded several times in full. And it downloaded wheels for windows / linux, although I was using a Mac.

My setup:

$ pipenv --version
pipenv, version 2018.05.18

$ pip -V
pip 18.0 from /usr/local/lib/python2.7/site-packages/pip (python 2.7)

[vamseekm]

this is pretty bad to the point I am afraid to install new python libs or upgrade existing ones.