UnicodeDecodeError in Python 3.5.2

[gwillem]

Issue description

Cannot run pipenv install or pipenv shell

Actual result

$ pipenv shell
Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 11, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/pipenv/cli.py", line 664, in shell
    three=three, python=python, fancy=fancy, shell_args=shell_args, pypi_mirror=pypi_mirror
  File "/usr/local/lib/python3.5/dist-packages/pipenv/core.py", line 2149, in do_shell
    shell = choose_shell()
  File "/usr/local/lib/python3.5/dist-packages/pipenv/shells.py", line 217, in choose_shell
    type_, command = detect_info()
  File "/usr/local/lib/python3.5/dist-packages/pipenv/shells.py", line 25, in detect_info
    return shellingham.detect_shell()
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/shellingham/__init__.py", line 24, in detect_shell
    shell = get_shell(pid, max_depth=max_depth)
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/shellingham/posix/__init__.py", line 20, in get_shell
    mapping = _get_process_mapping()
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/shellingham/posix/__init__.py", line 13, in _get_process_mapping
    return impl.get_process_mapping()
  File "/usr/local/lib/python3.5/dist-packages/pipenv/vendor/shellingham/posix/linux.py", line 25, in get_process_mapping
    cmd = fcmdline.read().split('\x00')[:-1]
  File "/usr/lib/python3.5/codecs.py", line 321, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc8 in position 68: invalid continuation byte

Have removed ~/.cache/pipenv and ~/.local/share/virtualenvs, but to no avail.

Added some debugging, it seems fcmdline.read() equals "cat" in some case. Have no idea why it would struggle with utf-8 chars?

Steps to replicate

$ pipenv --support

Pipenv version: '2018.7.1'

Pipenv location: '/usr/local/lib/python3.5/dist-packages/pipenv'

Python location: '/usr/bin/python3'

Other Python installations in PATH:

• 2.7: /usr/bin/python2.7

• 2.7: /usr/bin/python2.7

• 3.5: /usr/bin/python3.5m

• 3.5: /usr/bin/python3.5

• 2.7.12: /usr/bin/python

• 2.7.12: /usr/bin/python2

• 3.5.2: /usr/bin/python3

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.5.2',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '4.4.2ph+',
 'platform_system': 'Linux',
 'platform_version': '#2 SMP Mon Feb 22 13:25:03 PST 2016',
 'python_full_version': '3.5.2',
 'python_version': '3.5',
 'sys_platform': 'linux'}

System environment variables:

• XDG_SEAT_PATH
• LC_ALL
• LC_NUMERIC
• XDG_VTNR
• GDM_LANG
• XDG_CURRENT_DESKTOP
• UPSTART_JOB
• XDG_MENU_PREFIX
• MANDATORY_PATH
• GLADE_PIXMAP_PATH
• TERM
• SESSION
• PS1
• XDG_CONFIG_DIRS
• XDG_GREETER_DATA_DIR
• INSTANCE
• VIRTUALENVWRAPPER_SCRIPT
• HOME
• QT_LINUX_ACCESSIBILITY_ALWAYS_ON
• LESSCLOSE
• DEBFULLNAME
• DESKTOP_SESSION
• SESSION_MANAGER
• DEFAULTS_PATH
• GLADE_CATALOG_PATH
• GTK_IM_MODULE
• QT_ACCESSIBILITY
• LESSOPEN
• XDG_RUNTIME_DIR
• DBUS_SESSION_BUS_ADDRESS
• XAUTHORITY
• UPSTART_EVENTS
• _VIRTUALENVWRAPPER_API
• LC_TIME
• PWD
• LC_TELEPHONE
• CLUTTER_IM_MODULE
• GOPATH
• EMAIL
• XDG_SESSION_PATH
• SHLVL
• LANG
• XDG_SESSION_TYPE
• GLADE_MODULE_PATH
• GPG_AGENT_INFO
• IM_CONFIG_PHASE
• GNOME_KEYRING_CONTROL
• UPSTART_INSTANCE
• SSH_AUTH_SOCK
• COLORTERM
• LC_MONETARY
• SESSIONTYPE
• LC_PAPER
• USER
• LOGNAME
• PYTHONDONTWRITEBYTECODE
• LANGUAGE
• XMODIFIERS
• XDG_SESSION_DESKTOP
• LC_IDENTIFICATION
• GNOME_KEYRING_PID
• GDMSESSION
• LC_MEASUREMENT
• UPSTART_SESSION
• LC_NAME
• XDG_SEAT
• DISPLAY
• GTK_OVERLAY_SCROLLING
• LC_ADDRESS
• QT4_IM_MODULE
• SHELL
• QT_IM_MODULE
• OLDPWD
• PATH
• CLUTTER_BACKEND
• XDG_DATA_DIRS
• WINDOWID
• PIP_PYTHON_PATH
• QT_STYLE_OVERRIDE
• JOB
• XDG_SESSION_ID
• _
• LS_COLORS

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: /home/willem/code/golang/bin:/home/willem/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/willem/bin
• SHELL: /bin/bash
• LANG: en_US.UTF-8
• PWD: /home/willem/code/shared/freeflarum

---

Contents of Pipfile ('/home/willem/Dropbox/code/freeflarum/Pipfile'):

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

[requires]
python_version = "3.5"

[dev-packages]

[packages]
psutil = "*"
peewee = "==2.10.2"
requests = "*"
passlib = "*"
bcrypt = "*"
raven = {version = "*", extras = ["flask"]}
dnspython = "*"
nose = "*"
mkdocs-material = "*"
PyMySQL = "*"
Flask = "==0.12.2"
Flask-Login = "==0.4.1"
GeoIP = "*"

Contents of Pipfile.lock ('/home/willem/Dropbox/code/freeflarum/Pipfile.lock'):

{
    "_meta": {
        "hash": {
            "sha256": "622342d0b2dc500611a2ad6bcb7cc442bb92662a8e396c3b2428d2fd84233642"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.5"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "asn1crypto": {
            "hashes": [
                "sha256:2f1adbb7546ed199e3c90ef23ec95c5cf3585bac7d11fb7eb562a3fe89c64e87",
                "sha256:9d5c20441baf0cb60a4ac34cc447c6c189024b6b4c6cd7877034f4965c464e49"
            ],
            "version": "==0.24.0"
        },
        "bcrypt": {
            "hashes": [
                "sha256:01477981abf74e306e8ee31629a940a5e9138de000c6b0898f7f850461c4a0a5",
                "sha256:054d6e0acaea429e6da3613fcd12d05ee29a531794d96f6ab959f29a39f33391",
                "sha256:0872eeecdf9a429c1420158500eedb323a132bc5bf3339475151c52414729e70",
                "sha256:09a3b8c258b815eadb611bad04ca15ec77d86aa9ce56070e1af0d5932f17642a",
                "sha256:0f317e4ffbdd15c3c0f8ab5fbd86aa9aabc7bea18b5cc5951b456fe39e9f738c",
                "sha256:2788c32673a2ad0062bea850ab73cffc0dba874db10d7a3682b6f2f280553f20",
                "sha256:321d4d48be25b8d77594d8324c0585c80ae91ac214f62db9098734e5e7fb280f",
                "sha256:346d6f84ff0b493dbc90c6b77136df83e81f903f0b95525ee80e5e6d5e4eef84",
                "sha256:34dd60b90b0f6de94a89e71fcd19913a30e83091c8468d0923a93a0cccbfbbff",
                "sha256:3b4c23300c4eded8895442c003ae9b14328ae69309ac5867e7530de8bdd7875d",
                "sha256:43d1960e7db14042319c46925892d5fa99b08ff21d57482e6f5328a1aca03588",
                "sha256:49e96267cd9be55a349fd74f9852eb9ae2c427cd7f6455d0f1765d7332292832",
                "sha256:63e06ffdaf4054a89757a3a1ab07f1b922daf911743114a54f7c561b9e1baa58",
                "sha256:67ed1a374c9155ec0840214ce804616de49c3df9c5bc66740687c1c9b1cd9e8d",
                "sha256:6b662a5669186439f4f583636c8d6ea77cf92f7cfe6aae8d22edf16c36840574",
                "sha256:6efd9ca20aefbaf2e7e6817a2c6ed4a50ff6900fafdea1bcb1d0e9471743b144",
                "sha256:8569844a5d8e1fdde4d7712a05ab2e6061343ac34af6e7e3d7935b2bd1907bfd",
                "sha256:8629ea6a8a59f865add1d6a87464c3c676e60101b8d16ef404d0a031424a8491",
                "sha256:988cac675e25133d01a78f2286189c1f01974470817a33eaf4cfee573cfb72a5",
                "sha256:9a6fedda73aba1568962f7543a1f586051c54febbc74e87769bad6a4b8587c39",
                "sha256:9eced8962ce3b7124fe20fd358cf8c7470706437fa064b9874f849ad4c5866fc",
                "sha256:a005ed6163490988711ff732386b08effcbf8df62ae93dd1e5bda0714fad8afb",
                "sha256:ae35dbcb6b011af6c840893b32399252d81ff57d52c13e12422e16b5fea1d0fb",
                "sha256:b1e8491c6740f21b37cca77bc64677696a3fb9f32360794d57fa8477b7329eda",
                "sha256:c906bdb482162e9ef48eea9f8c0d967acceb5c84f2d25574c7d2a58d04861df1",
                "sha256:cb18ffdc861dbb244f14be32c47ab69604d0aca415bee53485fcea4f8e93d5ef",
                "sha256:cc2f24dc1c6c88c56248e93f28d439ee4018338567b0bbb490ea26a381a29b1e",
                "sha256:d860c7fff18d49e20339fc6dffc2d485635e36d4b2cccf58f45db815b64100b4",
                "sha256:d86da365dda59010ba0d1ac45aa78390f56bf7f992e65f70b3b081d5e5257b09",
                "sha256:e22f0997622e1ceec834fd25947dc2ee2962c2133ea693d61805bc867abaf7ea",
                "sha256:f2fe545d27a619a552396533cddf70d83cecd880a611cdfdbb87ca6aec52f66b",
                "sha256:f425e925485b3be48051f913dbe17e08e8c48588fdf44a26b8b14067041c0da6",
                "sha256:f7fd3ed3745fe6e81e28dc3b3d76cce31525a91f32a387e1febd6b982caf8cdb",
                "sha256:f9210820ee4818d84658ed7df16a7f30c9fba7d8b139959950acef91745cc0f7"
            ],
            "index": "pypi",
            "version": "==3.1.4"
        },
        "blinker": {
            "hashes": [
                "sha256:471aee25f3992bd325afa3772f1063dbdbbca947a041b8b89466dc00d606f8b6"
            ],
            "version": "==1.4"
        },
        "certifi": {
            "hashes": [
                "sha256:376690d6f16d32f9d1fe8932551d80b23e9d393a8578c5633a2ed39a64861638",
                "sha256:456048c7e371c089d0a77a5212fb37a2c2dce1e24146e3b7e0261736aaeaa22a"
            ],
            "version": "==2018.8.24"
        },
        "cffi": {
            "hashes": [
                "sha256:151b7eefd035c56b2b2e1eb9963c90c6302dc15fbd8c1c0a83a163ff2c7d7743",
                "sha256:1553d1e99f035ace1c0544050622b7bc963374a00c467edafac50ad7bd276aef",
                "sha256:1b0493c091a1898f1136e3f4f991a784437fac3673780ff9de3bcf46c80b6b50",
                "sha256:2ba8a45822b7aee805ab49abfe7eec16b90587f7f26df20c71dd89e45a97076f",
                "sha256:3bb6bd7266598f318063e584378b8e27c67de998a43362e8fce664c54ee52d30",
                "sha256:3c85641778460581c42924384f5e68076d724ceac0f267d66c757f7535069c93",
                "sha256:3eb6434197633b7748cea30bf0ba9f66727cdce45117a712b29a443943733257",
                "sha256:495c5c2d43bf6cebe0178eb3e88f9c4aa48d8934aa6e3cddb865c058da76756b",
                "sha256:4c91af6e967c2015729d3e69c2e51d92f9898c330d6a851bf8f121236f3defd3",
                "sha256:57b2533356cb2d8fac1555815929f7f5f14d68ac77b085d2326b571310f34f6e",
                "sha256:770f3782b31f50b68627e22f91cb182c48c47c02eb405fd689472aa7b7aa16dc",
                "sha256:79f9b6f7c46ae1f8ded75f68cf8ad50e5729ed4d590c74840471fc2823457d04",
                "sha256:7a33145e04d44ce95bcd71e522b478d282ad0eafaf34fe1ec5bbd73e662f22b6",
                "sha256:857959354ae3a6fa3da6651b966d13b0a8bed6bbc87a0de7b38a549db1d2a359",
                "sha256:87f37fe5130574ff76c17cab61e7d2538a16f843bb7bca8ebbc4b12de3078596",
                "sha256:95d5251e4b5ca00061f9d9f3d6fe537247e145a8524ae9fd30a2f8fbce993b5b",
                "sha256:9d1d3e63a4afdc29bd76ce6aa9d58c771cd1599fbba8cf5057e7860b203710dd",
                "sha256:a36c5c154f9d42ec176e6e620cb0dd275744aa1d804786a71ac37dc3661a5e95",
                "sha256:a6a5cb8809091ec9ac03edde9304b3ad82ad4466333432b16d78ef40e0cce0d5",
                "sha256:ae5e35a2c189d397b91034642cb0eab0e346f776ec2eb44a49a459e6615d6e2e",
                "sha256:b0f7d4a3df8f06cf49f9f121bead236e328074de6449866515cea4907bbc63d6",
                "sha256:b75110fb114fa366b29a027d0c9be3709579602ae111ff61674d28c93606acca",
                "sha256:ba5e697569f84b13640c9e193170e89c13c6244c24400fc57e88724ef610cd31",
                "sha256:be2a9b390f77fd7676d80bc3cdc4f8edb940d8c198ed2d8c0be1319018c778e1",
                "sha256:ca1bd81f40adc59011f58159e4aa6445fc585a32bb8ac9badf7a2c1aa23822f2",
                "sha256:d5d8555d9bfc3f02385c1c37e9f998e2011f0db4f90e250e5bc0c0a85a813085",
                "sha256:e55e22ac0a30023426564b1059b035973ec82186ddddbac867078435801c7801",
                "sha256:e90f17980e6ab0f3c2f3730e56d1fe9bcba1891eeea58966e89d352492cc74f4",
                "sha256:ecbb7b01409e9b782df5ded849c178a0aa7c906cf8c5a67368047daab282b184",
                "sha256:ed01918d545a38998bfa5902c7c00e0fee90e957ce036a4000a88e3fe2264917",
                "sha256:edabd457cd23a02965166026fd9bfd196f4324fe6032e866d0f3bd0301cd486f",
                "sha256:fdf1c1dc5bafc32bc5d08b054f94d659422b05aba244d6be4ddc1c72d9aa70fb"
            ],
            "version": "==1.11.5"
        },
        "chardet": {
            "hashes": [
                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
            ],
            "version": "==3.0.4"
        },
        "click": {
            "hashes": [
                "sha256:29f99fc6125fbc931b758dc053b3114e55c77a6e4c6c3a2674a2dc986016381d",
                "sha256:f15516df478d5a56180fbf80e68f206010e6d160fc39fa508b65e035fd75130b"
            ],
            "version": "==6.7"
        },
        "cryptography": {
            "hashes": [
                "sha256:02602e1672b62e803e08617ec286041cc453e8d43f093a5f4162095506bc0beb",
                "sha256:10b48e848e1edb93c1d3b797c83c72b4c387ab0eb4330aaa26da8049a6cbede0",
                "sha256:17db09db9d7c5de130023657be42689d1a5f60502a14f6f745f6f65a6b8195c0",
                "sha256:227da3a896df1106b1a69b1e319dce218fa04395e8cc78be7e31ca94c21254bc",
                "sha256:2cbaa03ac677db6c821dac3f4cdfd1461a32d0615847eedbb0df54bb7802e1f7",
                "sha256:31db8febfc768e4b4bd826750a70c79c99ea423f4697d1dab764eb9f9f849519",
                "sha256:4a510d268e55e2e067715d728e4ca6cd26a8e9f1f3d174faf88e6f2cb6b6c395",
                "sha256:6a88d9004310a198c474d8a822ee96a6dd6c01efe66facdf17cb692512ae5bc0",
                "sha256:76936ec70a9b72eb8c58314c38c55a0336a2b36de0c7ee8fb874a4547cadbd39",
                "sha256:7e3b4aecc4040928efa8a7cdaf074e868af32c58ffc9bb77e7bf2c1a16783286",
                "sha256:8168bcb08403ef144ff1fb880d416f49e2728101d02aaadfe9645883222c0aa5",
                "sha256:8229ceb79a1792823d87779959184a1bf95768e9248c93ae9f97c7a2f60376a1",
                "sha256:8a19e9f2fe69f6a44a5c156968d9fc8df56d09798d0c6a34ccc373bb186cee86",
                "sha256:8d10113ca826a4c29d5b85b2c4e045ffa8bad74fb525ee0eceb1d38d4c70dfd6",
                "sha256:be495b8ec5a939a7605274b6e59fbc35e76f5ad814ae010eb679529671c9e119",
                "sha256:dc2d3f3b1548f4d11786616cf0f4415e25b0fbecb8a1d2cd8c07568f13fdde38",
                "sha256:e4aecdd9d5a3d06c337894c9a6e2961898d3f64fe54ca920a72234a3de0f9cb3",
                "sha256:e79ab4485b99eacb2166f3212218dd858258f374855e1568f728462b0e6ee0d9",
                "sha256:f995d3667301e1754c57b04e0bae6f0fa9d710697a9f8d6712e8cca02550910f"
            ],
            "version": "==2.3.1"
        },
        "dnspython": {
            "hashes": [
                "sha256:40f563e1f7a7b80dc5a4e76ad75c23da53d62f1e15e6e517293b04e1f84ead7c",
                "sha256:861e6e58faa730f9845aaaa9c6c832851fbf89382ac52915a51f89c71accdd31"
            ],
            "index": "pypi",
            "version": "==1.15.0"
        },
        "flask": {
            "hashes": [
                "sha256:0749df235e3ff61ac108f69ac178c9770caeaccad2509cb762ce1f65570a8856",
                "sha256:49f44461237b69ecd901cc7ce66feea0319b9158743dd27a2899962ab214dac1"
            ],
            "index": "pypi",
            "version": "==0.12.2"
        },
        "flask-login": {
            "hashes": [
                "sha256:c815c1ac7b3e35e2081685e389a665f2c74d7e077cb93cecabaea352da4752ec"
            ],
            "index": "pypi",
            "version": "==0.4.1"
        },
        "geoip": {
            "hashes": [
                "sha256:a890da6a21574050692198f14b07aa4268a01371278dfc24f71cd9bc87ebf0e6"
            ],
            "index": "pypi",
            "version": "==1.3.2"
        },
        "idna": {
            "hashes": [
                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
            ],
            "version": "==2.7"
        },
        "itsdangerous": {
            "hashes": [
                "sha256:cbb3fcf8d3e33df861709ecaf89d9e6629cff0a217bc2848f1b41cd30d360519"
            ],
            "version": "==0.24"
        },
        "jinja2": {
            "hashes": [
                "sha256:74c935a1b8bb9a3947c50a54766a969d4846290e1e788ea44c1392163723c3bd",
                "sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4"
            ],
            "version": "==2.10"
        },
        "livereload": {
            "hashes": [
                "sha256:583179dc8d49b040a9da79bd33de59e160d2a8802b939e304eb359a4419f6498",
                "sha256:dd4469a8f5a6833576e9f5433f1439c306de15dbbfeceabd32479b1123380fa5"
            ],
            "version": "==2.5.2"
        },
        "markdown": {
            "hashes": [
                "sha256:9ba587db9daee7ec761cfc656272be6aabe2ed300fece21208e4aab2e457bc8f",
                "sha256:a856869c7ff079ad84a3e19cd87a64998350c2b94e9e08e44270faef33400f81"
            ],
            "version": "==2.6.11"
        },
        "markupsafe": {
            "hashes": [
                "sha256:a6be69091dac236ea9c6bc7d012beab42010fa914c459791d627dad4910eb665"
            ],
            "version": "==1.0"
        },
        "mkdocs": {
            "hashes": [
                "sha256:50bf14ba9fdef391ae3e416ce66f1c598949d6e9cf2e9d7ed69abe3cf368539a",
                "sha256:ce8c238231d8df02e9f66390b5ff153f52682326d83cac412d7f44957b704fbb"
            ],
            "version": "==1.0.3"
        },
        "mkdocs-material": {
            "hashes": [
                "sha256:2f6987ee2c70f9da0870079a4626f2d309f8528806f08e1a7da842b6c58e7c5c",
                "sha256:3905942fc8e659bd690420f5fd56bc1f31505067b574377aa8508011389696f0"
            ],
            "index": "pypi",
            "version": "==3.0.4"
        },
        "nose": {
            "hashes": [
                "sha256:9ff7c6cc443f8c51994b34a667bbcf45afd6d945be7477b52e97516fd17c53ac",
                "sha256:dadcddc0aefbf99eea214e0f1232b94f2fa9bd98fa8353711dacb112bfcbbb2a",
                "sha256:f1bffef9cbc82628f6e7d7b40d7e255aefaa1adb6a1b1d26c69a8b79e6208a98"
            ],
            "index": "pypi",
            "version": "==1.3.7"
        },
        "passlib": {
            "hashes": [
                "sha256:3d948f64138c25633613f303bcc471126eae67c04d5e3f6b7b8ce6242f8653e0",
                "sha256:43526aea08fa32c6b6dbbbe9963c4c767285b78147b7437597f992812f69d280"
            ],
            "index": "pypi",
            "version": "==1.7.1"
        },
        "peewee": {
            "hashes": [
                "sha256:2342067f48a779e35956a44cd547df883dda35153daa9fe994d970585aaec281"
            ],
            "index": "pypi",
            "version": "==2.10.2"
        },
        "psutil": {
            "hashes": [
                "sha256:0d8da7333549a998556c18eb2af3ce902c28d66ceb947505c008f91e9f988abd",
                "sha256:1914bacbd2fc2af8f795daa44b9d2e0649a147460cfd21b1a70a124472f66d40",
                "sha256:215d61a901e67b1a35e14c6aedef317f7fa7e6075a20c150fd11bd2c906d2c83",
                "sha256:51057c03aea251ad6667c2bba259bc7ed3210222d3a74152c84e3ab06e1da0ba",
                "sha256:5b6322b167a5ba0c5463b4d30dfd379cd4ce245a1162ebf8fc7ab5c5ffae4f3b",
                "sha256:a890c3e490493f21da2817ffc92822693bc0d6bcac9999caa04ffce8dd4e7132",
                "sha256:b34611280a2d0697f1c499e15e936d88109170194b390599c98bab8072a71f05",
                "sha256:cea2557ee6a9faa2c100947637ded68414e12b851633c4ce26e0311b2a2ed539",
                "sha256:d081707ef0081920533db30200a2d30d5c0ea9cf6afa7cf8881ae4516cc69c48"
            ],
            "index": "pypi",
            "version": "==5.4.7"
        },
        "pycparser": {
            "hashes": [
                "sha256:99a8ca03e29851d96616ad0404b4aad7d9ee16f25c9f9708a11faf2810f7b226"
            ],
            "version": "==2.18"
        },
        "pygments": {
            "hashes": [
                "sha256:78f3f434bcc5d6ee09020f92ba487f95ba50f1e3ef83ae96b9d5ffa1bab25c5d",
                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
            ],
            "version": "==2.2.0"
        },
        "pymdown-extensions": {
            "hashes": [
                "sha256:2e1d8f4a4c351cfa6c5ad88a0f2f4a3a30af481a942fdf8f9db0936e12ff37c2",
                "sha256:54675680f6ad3ee8242fcb8926703b30ea3dcbeb9e21b7f7f19077f0ec982a82"
            ],
            "version": "==5.0"
        },
        "pymysql": {
            "hashes": [
                "sha256:95f057328357e0e13a30e67857a8c694878b0175797a9a203ee7adbfb9b1ec5f",
                "sha256:9ec760cbb251c158c19d6c88c17ca00a8632bac713890e465b2be01fdc30713f"
            ],
            "index": "pypi",
            "version": "==0.9.2"
        },
        "pyyaml": {
            "hashes": [
                "sha256:3d7da3009c0f3e783b2c873687652d83b1bbfd5c88e9813fb7e5b03c0dd3108b",
                "sha256:3ef3092145e9b70e3ddd2c7ad59bdd0252a94dfe3949721633e41344de00a6bf",
                "sha256:40c71b8e076d0550b2e6380bada1f1cd1017b882f7e16f09a65be98e017f211a",
                "sha256:558dd60b890ba8fd982e05941927a3911dc409a63dcb8b634feaa0cda69330d3",
                "sha256:a7c28b45d9f99102fa092bb213aa12e0aaf9a6a1f5e395d36166639c1f96c3a1",
                "sha256:aa7dd4a6a427aed7df6fb7f08a580d68d9b118d90310374716ae90b710280af1",
                "sha256:bc558586e6045763782014934bfaf39d48b8ae85a2713117d16c39864085c613",
                "sha256:d46d7982b62e0729ad0175a9bc7e10a566fc07b224d2c79fafb5e032727eaa04",
                "sha256:d5eef459e30b09f5a098b9cea68bebfeb268697f78d647bd255a085371ac7f3f",
                "sha256:e01d3203230e1786cd91ccfdc8f8454c8069c91bee3962ad93b87a4b2860f537",
                "sha256:e170a9e6fcfd19021dd29845af83bb79236068bf5fd4df3327c1be18182b2531"
            ],
            "version": "==3.13"
        },
        "raven": {
            "hashes": [
                "sha256:3fd787d19ebb49919268f06f19310e8112d619ef364f7989246fc8753d469888",
                "sha256:95f44f3ea2c1b176d5450df4becdb96c15bf2632888f9ab193e9dd22300ce46a"
            ],
            "index": "pypi",
            "version": "==6.9.0"
        },
        "requests": {
            "hashes": [
                "sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1",
                "sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a"
            ],
            "index": "pypi",
            "version": "==2.19.1"
        },
        "six": {
            "hashes": [
                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
            ],
            "version": "==1.11.0"
        },
        "tornado": {
            "hashes": [
                "sha256:1c0816fc32b7d31b98781bd8ebc7a9726d7dce67407dc353a2e66e697e138448",
                "sha256:4f66a2172cb947387193ca4c2c3e19131f1c70fa8be470ddbbd9317fd0801582",
                "sha256:5327ba1a6c694e0149e7d9126426b3704b1d9d520852a3e4aa9fc8fe989e4046",
                "sha256:6a7e8657618268bb007646b9eae7661d0b57f13efc94faa33cd2588eae5912c9",
                "sha256:a9b14804783a1d77c0bd6c66f7a9b1196cbddfbdf8bceb64683c5ae60bd1ec6f",
                "sha256:c58757e37c4a3172949c99099d4d5106e4d7b63aa0617f9bb24bfbff712c7866",
                "sha256:d8984742ce86c0855cccecd5c6f54a9f7532c983947cff06f3a0e2115b47f85c"
            ],
            "markers": "python_version != '3.0.*' and python_version != '3.1.*' and python_version != '3.3.*' and python_version != '3.2.*' and python_version >= '2.7'",
            "version": "==5.1"
        },
        "urllib3": {
            "hashes": [
                "sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf",
                "sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5"
            ],
            "markers": "python_version != '3.0.*' and python_version >= '2.6' and python_version < '4' and python_version != '3.2.*' and python_version != '3.1.*' and python_version != '3.3.*'",
            "version": "==1.23"
        },
        "werkzeug": {
            "hashes": [
                "sha256:c3fd7a7d41976d9f44db327260e263132466836cef6f91512889ed60ad26557c",
                "sha256:d5da73735293558eb1651ee2fddc4d0dedcfa06538b8813a2e20011583c9e49b"
            ],
            "version": "==0.14.1"
        }
    },
    "develop": {}
}

[uranusjr]

Since fcmdline is actually reading from a file, it would be very helpful if you could upload the file it has trouble to read from. This beats me as well, why would it contain an undecodable character :/

[gwillem]

The specific file is /proc/<pid>/cmdline, which, in one case of the above exception, was cat. Can't wrap my head around it ...

[uranusjr]

The file is intended to be machine-readable, and therefore can contain non-human readable characters. This is the main reason I mentioned “upload the file”; the problem is likely only discoverable if the file could be provided as-is. Try adding a breakpoint to stop the program right when it errors, copy the file out while it still exists (it gets destroyed when the process it represents terminates), and upload it somewhere.

[gwillem]

Thanks! However, I can't reproduce this anymore (have since restarted). Probably there was a process with a broken utf-8 name on my system...

Closing for now.

[gwillem]

Ok, it's back, I copied the relevant /proc/2816/cmdline:

$ cat /tmp/cmdline  | hexdump -C
00000000  2f 6f 70 74 2f 67 6f 6f  67 6c 65 2f 63 68 72 6f  |/opt/google/chro|
00000010  6d 65 2f 63 68 72 6f 6d  65 20 2d 2d 74 79 70 65  |me/chrome --type|
00000020  3d 7a 79 67 6f 74 65 20  2d 2d 65 6e 61 62 6c 65  |=zygote --enable|
00000030  2d 63 72 61 73 68 2d 72  65 70 6f 72 74 65 72 3d  |-crash-reporter=|
00000040  7d 7b 04 33 c8 4b fd a4  08 e9 ed bf f2 de 3c 5b  |}{.3.K........<[|
00000050  3d b7 c6 35 c7 cc 72 a6  88 06 fb 72 3b e7 2c 97  |=..5..r....r;.,.|
00000060  3d b7 c6 35 2c 00                                 |=..5,.|
00000066

$ cat /tmp/cmdline | base64 
L29wdC9nb29nbGUvY2hyb21lL2Nocm9tZSAtLXR5cGU9enlnb3RlIC0tZW5hYmxlLWNyYXNoLXJl
cG9ydGVyPX17BDPIS/2kCOntv/LePFs9t8Y1x8xypogG+3I75yyXPbfGNSwA

[uranusjr]

Well, seems like the problem is simple—the arguments are not UTF-8 decodable. And honestly we are not interested in those things anyway (we only actually read the first part, the command path), so the fix should be fairly straightforward.

Thanks for all the help! I’ll take it from here, and this will be fixed in the next release (no eta right now).

[krishnasism]

Even with the latest version and after 4 years, it still happens.
I just copied my Pipfile to another folder, ran pipenv lock and copied it back to the old folder.

[matteius]

@krishnasism what version of pipenv and python? Python 3.5 and 3.6 support was dropped.