pip `deltachat not found`

[mmahmoudian]

• Server OS (Operating System) - preferably Debian 12:

❯ lsb_release -a
Distributor ID:	Debian
Description:	Debian GNU/Linux 12 (bookworm)
Release:	12
Codename:	bookworm

• On which OS you run cmdeploy:

❯  lsb_release -a
LSB Version:	n/a
Distributor ID:	EndeavourOS
Description:	EndeavourOS Linux
Release:	rolling
Codename:	rolling

• chatmail/relay version: git rev-parse HEAD

(venv) [mehrad@psyco relay]$ git rev-parse HEAD
65b660c41334c358027fe46989dd7797bed8126c

Expected behavior

I expected the cmdeploy to install deltachat from pypi using venv's pip.

What did you try to achieve?

Test the instance of chatmail

Actual behavior

This seems to be similar to #95 which hints some sort of potential regression.

I get relay/venv/bin/python3 -m pip install deltachat' returned non-zero exit status 1 after running cmdeplot test, which is because of pkgconfig.pkgconfig.PackageNotFoundError: deltachat not found.

The following is the detailed output of the `cmdeploy`

(venv) ❯  cmdeploy test
[$ /home/mehrad/tmp/setup-chatmail-relay/relay/venv/bin/python3 -m pip install deltachat]
Collecting deltachat
  Using cached deltachat-1.101.0.tar.gz (118 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [53 lines of output]
      Traceback (most recent call last):
        File "/home/mehrad/tmp/setup-chatmail-relay/relay/venv/lib/python3.14/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
          main()
          ~~~~^^
        File "/home/mehrad/tmp/setup-chatmail-relay/relay/venv/lib/python3.14/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
          json_out["return_val"] = hook(**hook_input["kwargs"])
                                   ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
        File "/home/mehrad/tmp/setup-chatmail-relay/relay/venv/lib/python3.14/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel
          return hook(config_settings)
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 4, in <module>
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/__init__.py", line 117, in setup
          return distutils.core.setup(**attrs)  # type: ignore[return-value]
                 ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/_distutils/core.py", line 148, in setup
          _setup_distribution = dist = klass(attrs)
                                       ~~~~~^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/dist.py", line 321, in __init__
          _Distribution.__init__(self, dist_attrs)
          ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 309, in __init__
          self.finalize_options()
          ~~~~~~~~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/dist.py", line 790, in finalize_options
          ep(self)
          ~~^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/setuptools/dist.py", line 810, in _finalize_setup_keywords
          ep.load()(self, ep.name, value)
          ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/cffi/setuptools_ext.py", line 229, in cffi_modules
          add_cffi_module(dist, cffi_module)
          ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/cffi/setuptools_ext.py", line 58, in add_cffi_module
          ffi = ffi()      # maybe it's a function instead of directly an ffi
        File "src/deltachat/_build.py", line 182, in ffibuilder
          flags = system_build_flags()
        File "src/deltachat/_build.py", line 49, in system_build_flags
          return pkgconfig.parse("deltachat")
                 ~~~~~~~~~~~~~~~^^^^^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/pkgconfig/pkgconfig.py", line 248, in parse
          _raise_if_not_exists(package)
          ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vy_8xwmp/overlay/lib/python3.14/site-packages/pkgconfig/pkgconfig.py", line 103, in _raise_if_not_exists
          raise PackageNotFoundError(package)
      pkgconfig.pkgconfig.PackageNotFoundError: deltachat not found
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'deltachat' when getting requirements to build wheel
Traceback (most recent call last):
  File "/home/mehrad/tmp/setup-chatmail-relay/relay/venv/bin/cmdeploy", line 7, in <module>
    sys.exit(main())
             ~~~~^^
  File "/home/mehrad/tmp/setup-chatmail-relay/relay/cmdeploy/src/cmdeploy/cmdeploy.py", line 408, in main
    res = args.func(args, out, **kwargs)
  File "/home/mehrad/tmp/setup-chatmail-relay/relay/cmdeploy/src/cmdeploy/cmdeploy.py", line 213, in test_cmd
    out.check_call(f"{sys.executable} -m pip install deltachat")
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mehrad/tmp/setup-chatmail-relay/relay/cmdeploy/src/cmdeploy/cmdeploy.py", line 304, in check_call
    return subprocess.check_call(arg, shell=True, env=env)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/subprocess.py", line 419, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '/home/mehrad/tmp/setup-chatmail-relay/relay/venv/bin/python3 -m pip install deltachat' returned non-zero exit status 1.

What happened instead?

I ran both following inside the venv and got the same error:

• python3 -m pip install deltachat
• pip install deltachat

Steps to reproduce the problem:

1. cmdeploy init
2. cmdeploy run
3. cmdeploy dns
4. cmdeploy test

Screenshots

Logs

[ccclxxiii]

@mmahmoudian

it's not clear why you're trying to do a pip install deltachat
if the goal is to deploy a chatmail relay from an arch-based machine you're close.

• clone the repo
• cd relay
• ./scripts/initenv.sh
• ./scripts/cmdeploy init example.com # after setting your a record for the domain
• ./scripts/cmdeploy run #to deploy

the initenv.sh script should work to bootstrap the repo and it's dependencies. if your use-case is something else, please let us know.

[mmahmoudian]

@ccclxxiii Thanks for the response.

it's not clear why you're trying to do a pip install deltachat

I am not directly running that. please checkout the output of cmdeploy test that I initially posted under the "Actual behavior" section, particularly the last line of it that reads:

subprocess.CalledProcessError: Command '/home/mehrad/tmp/setup-chatmail-relay/relay/venv/bin/python3 -m pip install deltachat' returned non-zero exit status 1.

[ccclxxiii]

@ccclxxiii Thanks for the response.

it's not clear why you're trying to do a pip install deltachat

I am not directly running that. please checkout the output of cmdeploy test that I initially posted under the "Actual behavior" section, particularly the last line of it that reads:

subprocess.CalledProcessError: Command '/home/mehrad/tmp/setup-chatmail-relay/relay/venv/bin/python3 -m pip install deltachat' returned non-zero exit status 1.

thanks for the response @mmahmoudian it's not clear if you ran ./scripts/initenv.sh first before doing ./scripts/cmdeploy init domain.com. that should have taken care of setting up the venv properly for the project.

are you currently deployed? if you'd like some more interactive support please send me a dc invite link to a room or something and we'll chat about it.

[feld]

this looks a lot like this bug: #733

[ccclxxiii]

this looks a lot like this bug: #733

let's see if @mmahmoudian can shed some light. if the hash is back to that time, it's possible. @mmahmoudian are you able to pull the latest and replicate?

[mmahmoudian]

@mmahmoudian are you able to pull the latest and replicate?

I can confirm that I'm still seeing this error with the latest.

This is what I did (expand each section to see the output):

1. Running the git pull

$ git pull
remote: Enumerating objects: 259, done.
remote: Counting objects: 100% (259/259), done.
remote: Compressing objects: 100% (109/109), done.
remote: Total 209 (delta 121), reused 147 (delta 72), pack-reused 0 (from 0)
Receiving objects: 100% (209/209), 35.03 KiB | 1024.00 KiB/s, done.
Resolving deltas: 100% (121/121), completed with 40 local objects.
From https://github.com/chatmail/relay
   e42139e..7a6ed83  main       -> origin/main
Updating e42139e..7a6ed83
Fast-forward
 .github/workflows/ci.yaml                                 |  2 +-
 .github/workflows/test-and-deploy-ipv4only.yaml           |  3 +-
 chatmaild/src/chatmaild/config.py                         | 15 ++++++++++
 chatmaild/src/chatmaild/newemail.py                       | 16 ++++++++++-
 chatmaild/src/chatmaild/tests/test_config.py              | 14 +++++++++
 chatmaild/src/chatmaild/tests/test_filtermail_blackbox.py |  6 ++++
 chatmaild/src/chatmaild/tests/test_newmail.py             | 35 ++++++++++++++++++++++-
 cmdeploy/src/cmdeploy/chatmail.zone.j2                    |  2 ++
 cmdeploy/src/cmdeploy/cmdeploy.py                         | 15 +++++++---
 cmdeploy/src/cmdeploy/deployers.py                        | 60 +++++++++++++++++++++++++++++++++-----
 cmdeploy/src/cmdeploy/dns.py                              |  6 ++--
 cmdeploy/src/cmdeploy/dovecot/deployer.py                 |  2 +-
 cmdeploy/src/cmdeploy/dovecot/dovecot.conf.j2             |  6 ++--
 cmdeploy/src/cmdeploy/filtermail/deployer.py              |  6 ++--
 cmdeploy/src/cmdeploy/nginx/autoconfig.xml.j2             | 20 ++++++-------
 cmdeploy/src/cmdeploy/nginx/deployer.py                   |  6 ++--
 cmdeploy/src/cmdeploy/nginx/mta-sts.txt.j2                |  2 +-
 cmdeploy/src/cmdeploy/nginx/nginx.conf.j2                 | 23 ++++++++++-----
 cmdeploy/src/cmdeploy/postfix/deployer.py                 | 14 +++++++++
 cmdeploy/src/cmdeploy/postfix/lmtp_header_cleanup         |  1 +
 cmdeploy/src/cmdeploy/postfix/main.cf.j2                  | 21 +++++++++++---
 cmdeploy/src/cmdeploy/postfix/smtp_tls_policy_map         |  3 ++
 cmdeploy/src/cmdeploy/selfsigned/deployer.py              | 36 +++++++++++++++++++++++
 cmdeploy/src/cmdeploy/tests/online/test_0_qr.py           | 24 +++++++++++++---
 cmdeploy/src/cmdeploy/tests/online/test_1_basic.py        |  2 +-
 cmdeploy/src/cmdeploy/tests/online/test_2_deltachat.py    | 18 ++++++++----
 cmdeploy/src/cmdeploy/tests/plugin.py                     | 70 +++++++++++++++++++++++++++++++--------------
 cmdeploy/src/cmdeploy/tests/test_dns.py                   | 10 +++++++
 cmdeploy/src/cmdeploy/unbound/unbound.conf.j2             |  4 +++
 doc/source/getting_started.rst                            | 29 +++++++++++++++++++
 doc/source/overview.rst                                   | 11 +++++--
 doc/source/related.rst                                    |  4 +--
 www/src/dclogin.js                                        | 21 ++++++++++++++
 www/src/index.md                                          | 13 +++++++++
 www/src/qrcode-svg.min.js                                 |  9 ++++++
 35 files changed, 441 insertions(+), 88 deletions(-)
 create mode 100644 cmdeploy/src/cmdeploy/postfix/smtp_tls_policy_map
 create mode 100644 cmdeploy/src/cmdeploy/selfsigned/deployer.py
 create mode 100644 cmdeploy/src/cmdeploy/unbound/unbound.conf.j2
 create mode 100644 www/src/dclogin.js
 create mode 100644 www/src/qrcode-svg.min.js

2. Running the ./scripts/initenv.sh

$  ./scripts/initenv.sh
Obtaining file:///home/mehrad/Documents/setup-chatmail-relay/relay/chatmaild
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build editable ... done
  Preparing editable metadata (pyproject.toml) ... done
Requirement already satisfied: aiosmtpd in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (1.4.6)
Requirement already satisfied: iniconfig in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (2.3.0)
Requirement already satisfied: deltachat-rpc-server in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (2.39.0)
Requirement already satisfied: deltachat-rpc-client in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (2.39.0)
Requirement already satisfied: filelock in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (3.20.3)
Requirement already satisfied: requests in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (2.32.5)
Requirement already satisfied: crypt-r>=3.13.1 in ./venv/lib/python3.14/site-packages (from chatmaild==0.3) (3.13.1)
Requirement already satisfied: atpublic in ./venv/lib/python3.14/site-packages (from aiosmtpd->chatmaild==0.3) (7.0.0)
Requirement already satisfied: attrs in ./venv/lib/python3.14/site-packages (from aiosmtpd->chatmaild==0.3) (25.4.0)
Requirement already satisfied: charset_normalizer<4,>=2 in ./venv/lib/python3.14/site-packages (from requests->chatmaild==0.3) (3.4.4)
Requirement already satisfied: idna<4,>=2.5 in ./venv/lib/python3.14/site-packages (from requests->chatmaild==0.3) (3.11)
Requirement already satisfied: urllib3<3,>=1.21.1 in ./venv/lib/python3.14/site-packages (from requests->chatmaild==0.3) (2.6.3)
Requirement already satisfied: certifi>=2017.4.17 in ./venv/lib/python3.14/site-packages (from requests->chatmaild==0.3) (2026.1.4)
Building wheels for collected packages: chatmaild
  Building editable for chatmaild (pyproject.toml) ... done
  Created wheel for chatmaild: filename=chatmaild-0.3-0.editable-py3-none-any.whl size=1629 sha256=7c46f6fad8f80e7d49bd661e65da16a1a2f791dd35385ee6410a7b1729c98309
  Stored in directory: /tmp/pip-ephem-wheel-cache-1nivowre/wheels/e8/42/ff/50d15767c93d6ef7b69600d45f34f517640b885375063eabcc
Successfully built chatmaild
Installing collected packages: chatmaild
  Attempting uninstall: chatmaild
    Found existing installation: chatmaild 0.3
    Uninstalling chatmaild-0.3:
      Successfully uninstalled chatmaild-0.3
Successfully installed chatmaild-0.3
Obtaining file:///home/mehrad/Documents/setup-chatmail-relay/relay/cmdeploy
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build editable ... done
  Preparing editable metadata (pyproject.toml) ... done
Requirement already satisfied: pyinfra>=3 in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (3.6)
Requirement already satisfied: pillow in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (12.1.0)
Requirement already satisfied: qrcode in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (8.2)
Requirement already satisfied: markdown in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (3.10.1)
Requirement already satisfied: pytest in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (9.0.2)
Requirement already satisfied: setuptools>=68 in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (80.10.2)
Requirement already satisfied: termcolor in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (3.3.0)
Requirement already satisfied: build in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (1.4.0)
Requirement already satisfied: tox in ./venv/lib/python3.14/site-packages (from cmdeploy==0.2) (4.34.1)
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Building wheels for collected packages: cmdeploy
  Building editable for cmdeploy (pyproject.toml) ... done
  Created wheel for cmdeploy: filename=cmdeploy-0.2-0.editable-py3-none-any.whl size=1568 sha256=91758e426c97ecd215bbd25d1dad8b36e357a4dbfba5d6bae9c08d01b9858284
  Stored in directory: /tmp/pip-ephem-wheel-cache-b87p8jdj/wheels/52/8d/ef/5861e9ead817994fe2bf1427eef927b6c4a281ee12413cd657
Successfully built cmdeploy
Installing collected packages: cmdeploy
  Attempting uninstall: cmdeploy
    Found existing installation: cmdeploy 0.2
    Uninstalling cmdeploy-0.2:
      Successfully uninstalled cmdeploy-0.2
Successfully installed cmdeploy-0.2
Requirement already satisfied: sphinx in ./venv/lib/python3.14/site-packages (9.1.0)
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Requirement already satisfied: sphinxcontrib-htmlhelp>=2.0.6 in ./venv/lib/python3.14/site-packages (from sphinx) (2.1.0)
Requirement already satisfied: sphinxcontrib-jsmath>=1.0.1 in ./venv/lib/python3.14/site-packages (from sphinx) (1.0.1)
Requirement already satisfied: sphinxcontrib-qthelp>=1.0.6 in ./venv/lib/python3.14/site-packages (from sphinx) (2.0.0)
Requirement already satisfied: sphinxcontrib-serializinghtml>=1.1.9 in ./venv/lib/python3.14/site-packages (from sphinx) (2.0.0)
Requirement already satisfied: Jinja2>=3.1 in ./venv/lib/python3.14/site-packages (from sphinx) (3.1.6)
Requirement already satisfied: Pygments>=2.17 in ./venv/lib/python3.14/site-packages (from sphinx) (2.19.2)
Requirement already satisfied: docutils<0.23,>=0.21 in ./venv/lib/python3.14/site-packages (from sphinx) (0.22.4)
Requirement already satisfied: snowballstemmer>=2.2 in ./venv/lib/python3.14/site-packages (from sphinx) (3.0.1)
Requirement already satisfied: babel>=2.13 in ./venv/lib/python3.14/site-packages (from sphinx) (2.17.0)
Requirement already satisfied: alabaster>=0.7.14 in ./venv/lib/python3.14/site-packages (from sphinx) (1.0.0)
Requirement already satisfied: imagesize>=1.3 in ./venv/lib/python3.14/site-packages (from sphinx) (1.4.1)
Requirement already satisfied: requests>=2.30.0 in ./venv/lib/python3.14/site-packages (from sphinx) (2.32.5)
Requirement already satisfied: roman-numerals>=1.0.0 in ./venv/lib/python3.14/site-packages (from sphinx) (4.1.0)
Requirement already satisfied: packaging>=23.0 in ./venv/lib/python3.14/site-packages (from sphinx) (26.0)
Requirement already satisfied: pyyaml in ./venv/lib/python3.14/site-packages (from sphinxcontrib-mermaid) (6.0.3)
Requirement already satisfied: colorama>=0.4.6 in ./venv/lib/python3.14/site-packages (from sphinx-autobuild) (0.4.6)
Requirement already satisfied: starlette>=0.35 in ./venv/lib/python3.14/site-packages (from sphinx-autobuild) (0.52.1)
Requirement already satisfied: uvicorn>=0.25 in ./venv/lib/python3.14/site-packages (from sphinx-autobuild) (0.40.0)
Requirement already satisfied: watchfiles>=0.20 in ./venv/lib/python3.14/site-packages (from sphinx-autobuild) (1.1.1)
Requirement already satisfied: websockets>=11 in ./venv/lib/python3.14/site-packages (from sphinx-autobuild) (16.0)
Requirement already satisfied: beautifulsoup4 in ./venv/lib/python3.14/site-packages (from furo) (4.14.3)
Requirement already satisfied: sphinx-basic-ng>=1.0.0.beta2 in ./venv/lib/python3.14/site-packages (from furo) (1.0.0b2)
Requirement already satisfied: accessible-pygments>=0.0.5 in ./venv/lib/python3.14/site-packages (from furo) (0.0.5)
Requirement already satisfied: MarkupSafe>=2.0 in ./venv/lib/python3.14/site-packages (from Jinja2>=3.1->sphinx) (3.0.3)
Requirement already satisfied: charset_normalizer<4,>=2 in ./venv/lib/python3.14/site-packages (from requests>=2.30.0->sphinx) (3.4.4)
Requirement already satisfied: idna<4,>=2.5 in ./venv/lib/python3.14/site-packages (from requests>=2.30.0->sphinx) (3.11)
Requirement already satisfied: urllib3<3,>=1.21.1 in ./venv/lib/python3.14/site-packages (from requests>=2.30.0->sphinx) (2.6.3)
Requirement already satisfied: certifi>=2017.4.17 in ./venv/lib/python3.14/site-packages (from requests>=2.30.0->sphinx) (2026.1.4)
Requirement already satisfied: anyio<5,>=3.6.2 in ./venv/lib/python3.14/site-packages (from starlette>=0.35->sphinx-autobuild) (4.12.1)
Requirement already satisfied: click>=7.0 in ./venv/lib/python3.14/site-packages (from uvicorn>=0.25->sphinx-autobuild) (8.3.1)
Requirement already satisfied: h11>=0.8 in ./venv/lib/python3.14/site-packages (from uvicorn>=0.25->sphinx-autobuild) (0.16.0)
Requirement already satisfied: soupsieve>=1.6.1 in ./venv/lib/python3.14/site-packages (from beautifulsoup4->furo) (2.8.3)
Requirement already satisfied: typing-extensions>=4.0.0 in ./venv/lib/python3.14/site-packages (from beautifulsoup4->furo) (4.15.0)

3. Running the ./scripts/cmdeploy test

$  ./scripts/cmdeploy test
[$ /home/mehrad/Documents/setup-chatmail-relay/relay/venv/bin/python3 -m pip install deltachat]
Collecting deltachat
  Using cached deltachat-1.101.0.tar.gz (118 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [53 lines of output]
      Traceback (most recent call last):
        File "/home/mehrad/Documents/setup-chatmail-relay/relay/venv/lib/python3.14/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
          main()
          ~~~~^^
        File "/home/mehrad/Documents/setup-chatmail-relay/relay/venv/lib/python3.14/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
          json_out["return_val"] = hook(**hook_input["kwargs"])
                                   ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
        File "/home/mehrad/Documents/setup-chatmail-relay/relay/venv/lib/python3.14/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel
          return hook(config_settings)
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/build_meta.py", line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 4, in <module>
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/__init__.py", line 117, in setup
          return distutils.core.setup(**attrs)  # type: ignore[return-value]
                 ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/_distutils/core.py", line 148, in setup
          _setup_distribution = dist = klass(attrs)
                                       ~~~~~^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/dist.py", line 321, in __init__
          _Distribution.__init__(self, dist_attrs)
          ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/_distutils/dist.py", line 307, in __init__
          self.finalize_options()
          ~~~~~~~~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/dist.py", line 790, in finalize_options
          ep(self)
          ~~^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/setuptools/dist.py", line 810, in _finalize_setup_keywords
          ep.load()(self, ep.name, value)
          ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/cffi/setuptools_ext.py", line 229, in cffi_modules
          add_cffi_module(dist, cffi_module)
          ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/cffi/setuptools_ext.py", line 58, in add_cffi_module
          ffi = ffi()      # maybe it's a function instead of directly an ffi
        File "src/deltachat/_build.py", line 182, in ffibuilder
          flags = system_build_flags()
        File "src/deltachat/_build.py", line 49, in system_build_flags
          return pkgconfig.parse("deltachat")
                 ~~~~~~~~~~~~~~~^^^^^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/pkgconfig/pkgconfig.py", line 248, in parse
          _raise_if_not_exists(package)
          ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-t85l_5_i/overlay/lib/python3.14/site-packages/pkgconfig/pkgconfig.py", line 103, in _raise_if_not_exists
          raise PackageNotFoundError(package)
      pkgconfig.pkgconfig.PackageNotFoundError: deltachat not found
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'deltachat' when getting requirements to build wheel
Traceback (most recent call last):
  File "/home/mehrad/Documents/setup-chatmail-relay/relay/venv/bin/cmdeploy", line 6, in <module>
    sys.exit(main())
             ~~~~^^
  File "/home/mehrad/Documents/setup-chatmail-relay/relay/cmdeploy/src/cmdeploy/cmdeploy.py", line 415, in main
    res = args.func(args, out, **kwargs)
  File "/home/mehrad/Documents/setup-chatmail-relay/relay/cmdeploy/src/cmdeploy/cmdeploy.py", line 220, in test_cmd
    out.check_call(f"{sys.executable} -m pip install deltachat")
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mehrad/Documents/setup-chatmail-relay/relay/cmdeploy/src/cmdeploy/cmdeploy.py", line 311, in check_call
    return subprocess.check_call(arg, shell=True, env=env)
           ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/subprocess.py", line 419, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '/home/mehrad/Documents/setup-chatmail-relay/relay/venv/bin/python3 -m pip install deltachat' returned non-zero exit status 1.

4. Running the git rev-parse HEAD to get the latest commit hash

$ git rev-parse HEAD
7a6ed8340e1587b57c8c7eb4f077c50feccca3b7

Just to be clear, I didn't manually activated the venv simply because the scripts/cmdeploy activates the venv in the 5th line.

are you currently deployed? if you'd like some more interactive support please send me a dc invite link to a room or something and we'll chat about it.

Thanks for your offer. My instance is up and running. I managed to test it using two clients manually.

[ccclxxiii]

Just to be clear, I didn't manually activated the venv simply because the scripts/cmdeploy activates the venv in the 5th line.

got it, thanks. on an arch system i still had to use it. i've tried replicating on arch (as a deploy-from machine) and debian (server machine target) and cannot so far. i deployed a new relay successfully going through our standard flow as outlined prior.

the next time you go to update your system, please pull the latest main and re-deploy according to our instructions. if the error occurs again let's take some time to get a bit more information on your system as it happens. will leave this issue open for now