Point to custom binary of OpenSSL #12547

lryindra · 2025-03-03T16:58:47Z

I need to build a cryptography wheel that includes a OpenSSL binary that I built. I tried several setups but I get stuck when I try to "from cryptography.hazmat.backends.openssl import backend". I need to verify the OpenSSL version so I need to print openssl_version_text() and openssl_version_number(). When I run this import I get the following:

Traceback (most recent call last):
File "\cryptography_pypy\openssl_version.py", line 6, in
from cryptography.hazmat.backends.openssl import backend as c_openssl
File "\cryptography_pypy\myenv\Lib\site-packages\cryptography\hazmat\backends\openssl_init_.py", line 7, in
from cryptography.hazmat.backends.openssl.backend import backend
File "\cryptography_pypy\myenv\Lib\site-packages\cryptography\hazmat\backends\openssl\backend.py", line 7, in
from cryptography.hazmat.bindings._rust import openssl as rust_openssl
ImportError: The specified module could not be found`

I am running in Windows 11 (v23H2).
I have tried Python 3.12 with venv and virtualenv and just installing all the dependencies into the system install. I have also tried PyPy 3.11 with virtualenv. I have tried upgrading pip before trying to build the wheel. These are the commands I use to build:

pip wheel --no-cache-dir --no-binary cryptography cryptography
python -m pip install --no-index --find-links=./ cryptography-44.0.2-pp311-pypy311_pp73-win_amd64.whl`

I have Visual Studios Build Tools 2022 with "Development with C++" installed. I run vcvars64.bat before building the wheel.

I have tried installing Rust from the msi and from rustup. I currently have rust installed using rustup and rustc is located in .cargo\bin\rustc.exe, and the version is rustc 1.85.0 (4d91de4e4 2025-02-17).

I have the environmental variable OPENSSL_DIR set to the openssl install directory, and I have the binary folder for openssl on PATH

alex · 2025-03-03T17:07:47Z

It's a bit difficult to say, as you haven't included precise steps for reproducing.

https://github.com/pyca/cryptography/blob/main/.github/workflows/wheel-builder.yml#L308-L370 documents precisely how we build our wheels, so following that and adjusting to your own environment is your best bet.

lryindra · 2025-03-03T18:15:53Z

I'm not familiar with YML files so I did the best I can but maturin failed:

rustc version rustc 1.85.0 (4d91de4e4 2025-02-17)
Microsoft Visual Studio 2022 Build Tools
PyPy 3.11 setup with a virtualenv
here is the python version and pip list

Python 3.11.11 (0253c85bf5f8, Feb 26 2025, 10:43:25)
[PyPy 7.3.19 with MSC v.1941 64 bit (AMD64)] on win32
Package Version

cffi 1.18.0.dev0
flit_core 3.10.1
greenlet 0.4.13
hpy 0.9.1.dev61+g79fb330d
maturin 1.7.5
pip 25.0.1
pycparser 2.22
setuptools 75.8.2
tomli 2.1.0
uv 0.5.4
wheel 0.45.1

I downloaded the .zip from github and extracted it
then i ran
uv build --build-constraint=.github/requirements/build-requirements.txt --require-hashes --sdist

Building source distribution...
Running maturin pep517 write-sdist --sdist-directory <base dir>\crypto_github\cryptography-44.0.2\dist
📦 Including license file "\crypto_github\cryptography-44.0.2\LICENSE"
📦 Including license file "\crypto_github\cryptography-44.0.2\LICENSE.APACHE"
📦 Including license file "\crypto_github\cryptography-44.0.2\LICENSE.BSD"
🍹 Building a mixed python/rust project
🔗 Found pyo3 bindings with abi3 support for Python ≥ 3.7
📡 Using build options features, locked from pyproject.toml
💥 maturin failed
Caused by: Failed to build source distribution
Caused by: Failed to query file list from git: exit code: 128
--- Project Path: \crypto_github\cryptography-44.0.2
--- Stdout:

--- Stderr:
fatal: Not a git repository (or any of the parent directories): .git

Error: command ['maturin', 'pep517', 'write-sdist', '--sdist-directory', '\crypto_github\cryptography-44.0.2\dist'] > returned non-zero exit status 1
error: Build backend failed to build sdist through build_sdist (exit code: 1)

the .github folder is located at \crypto_github\cryptography-44.0.2.github, so I don't know why this failed.

alex · 2025-03-03T18:20:29Z

Can you please provide complete instructions to reproduce? You're only showing part of the steps you're running, and it makes it impossible for me to give any advice.

lryindra · 2025-03-03T18:25:40Z

I really need advice about what system you are using and what steps you use

…

On Mon, Mar 3, 2025, 12:20 PM Alex Gaynor ***@***.***> wrote: Can you please provide *complete* instructions to reproduce? You're only showing part of the steps you're running, and it makes it impossible for me to give any advice. — Reply to this email directly, view it on GitHub <#12547 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGWCKAUS4RNRTANO5G4WIVT2SSMQFAVCNFSM6AAAAABYHP3ED6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMOJVGIYDMOBVGE> . You are receiving this because you authored the thread.Message ID: ***@***.***> [image: alex]*alex* left a comment (pyca/cryptography#12547) <#12547 (comment)> Can you please provide *complete* instructions to reproduce? You're only showing part of the steps you're running, and it makes it impossible for me to give any advice. — Reply to this email directly, view it on GitHub <#12547 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGWCKAUS4RNRTANO5G4WIVT2SSMQFAVCNFSM6AAAAABYHP3ED6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMOJVGIYDMOBVGE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

alex · 2025-03-03T18:28:12Z

I don't know how to respond to that, I shared with you the literal exact steps we use to build our wheels.

lryindra · 2025-03-03T19:04:04Z

Setup environmental variables:

set PATH=C:\OpenSSL\OpenSSL\bin;%PATH%
set OPENSSL_DIR=C:\OpenSSL\OpenSSL

Install Rust

Installed rust using rustup
- https://www.rust-lang.org/tools/install

Install PyPy

Download PyPy3.11 from
- https://pypy.org/download.html
Unzip pypy3.11-v7.3.19-win64.zip to C:\PyPy3.11

Using PyPy 3.11

C:\PyPy3.11\pypy3.11-v7.3.19-win64\pypy3.11.exe -m ensurepip
C:\PyPy3.11\pypy3.11-v7.3.19-win64\pypy3.11.exe -m pip install --upgrade pip
C:\PyPy3.11\pypy3.11-v7.3.19-win64\pypy3.11.exe -m pip install virtualenv

And here is the version and pip list

Python 3.11.11 (0253c85bf5f8, Feb 26 2025, 10:43:25)
[PyPy 7.3.19 with MSC v.1941 64 bit (AMD64)]
Package Version

cffi 1.18.0.dev0
distlib 0.3.9
filelock 3.17.0
greenlet 0.4.13
hpy 0.9.1.dev61+g79fb330d
pip 25.0.1
platformdirs 4.3.6
setuptools 65.5.0
virtualenv 20.29.2

Create Virtual Environment

Create the folder \Python_Workspace\crypto_github and change directory
C:\PyPy3.11\pypy3.11-v7.3.19-win64\pypy3.11.exe -m virtualenv myenv
myenv\Scripts\activate
Python -m pip install flit-core==3.10.1 maturin==1.7.5 pycparser==2.22 tomli==2.1.0
Python -m pip install uv==0.5.4
"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"
pip wheel --no-cache-dir --no-binary cryptography cryptography
python -m pip install --force-reinstall --no-index --find-links=./ cryptography-44.0.2-pp311-pypy311_pp73-win_amd64.whl

then I get
(myenv) \crypto_github>python

Python 3.11.11 (0253c85bf5f8, Feb 26 2025, 10:43:25)
[PyPy 7.3.19 with MSC v.1941 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

from cryptography.hazmat.backends.openssl import backend
Traceback (most recent call last):
File "", line 1, in
from cryptography.hazmat.backends.openssl import backend
File "\crypto_github\myenv\Lib\site-packages\cryptography\hazmat\backends\openssl_init_.py", line 7, in
from cryptography.hazmat.backends.openssl.backend import backend
File "\crypto_github\myenv\Lib\site-packages\cryptography\hazmat\backends\openssl\backend.py", line 7, in
from cryptography.hazmat.bindings._rust import openssl as rust_openssl
ImportError: The specified module could not be found

alex · 2025-03-03T19:45:11Z

The most obvious difference is that you're not setting OPENSSL_STATIC=1, does it still occur if you set that?

lryindra · 2025-03-03T19:54:43Z

I tried a clean install of Python 3.12
python -m pip cache purge
python --version

Python 3.12.3

rustc --version

rustc 1.85.0 (4d91de4e4 2025-02-17)

echo %OPENSSL_DIR%

C:\OpenSSL\OpenSSL

where openssl

C:\OpenSSL\OpenSSL\bin\openssl.exe

"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"

** Visual Studio 2022 Developer Command Prompt v17.13.2
** Copyright (c) 2022 Microsoft Corporation

[vcvarsall.bat] Environment initialized for: 'x64'

python -m pip install --upgrade pip
python -m pip install virtualenv
python -m pip list

Package Version

distlib 0.3.9
filelock 3.17.0
pip 25.0.1
platformdirs 4.3.6
virtualenv 20.29.2

python -m virtualenv myenv
myenv\Scripts\activate
set OPENSSL_STATIC=1
pip wheel --no-cache-dir --no-binary cryptography cryptography
pip install cryptography-44.0.2-cp37-abi3-win_amd64.whl
pip list

Package Version

cffi 1.17.1
cryptography 44.0.2
pip 25.0.1
pycparser 2.22

python

Python 3.12.3 (tags/v3.12.3:f6650f9, Apr 9 2024, 14:05:25) [MSC v.1938 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

from cryptography.hazmat.backends.openssl import backend
Traceback (most recent call last):
File "", line 1, in
File "\crypto_github\myenv\Lib\site-packages\cryptography\hazmat\backends\openssl_init_.py", line 7, in
from cryptography.hazmat.backends.openssl.backend import backend
File "\crypto_github\myenv\Lib\site-packages\cryptography\hazmat\backends\openssl\backend.py", line 7, in
from cryptography.hazmat.bindings._rust import openssl as rust_openssl
ImportError: DLL load failed while importing _rust: The specified module could not be found.

lryindra · 2025-03-03T20:17:25Z

I even tried to download the .zip from github for 44.0.2 and run nox -e local on the extracted source. (this is a new virtual environment)
pip install cffi==1.17.1 flit-core==3.10.1 maturin==1.7.5 pycparser==2.22 tomli==2.1.0 setuptools==73.0.1 uv==0.5.4
pip install -r ci-constraints-requirements.txt
pip list

Package Version

alabaster 1.0.0
argcomplete 3.5.1
babel 2.16.0
build 1.2.2.post1
certifi 2024.8.30
cffi 1.17.1
charset-normalizer 3.4.0
check-sdist 1.2.0
click 8.1.7
colorama 0.4.6
colorlog 6.9.0
coverage 7.6.8
distlib 0.3.9
docutils 0.21.2
execnet 2.1.1
filelock 3.16.1
flit_core 3.10.1
idna 3.10
imagesize 1.4.1
iniconfig 2.0.0
Jinja2 3.1.4
MarkupSafe 3.0.2
maturin 1.7.5
mypy 1.13.0
mypy-extensions 1.0.0
nh3 0.2.18
nox 2024.10.9
packaging 24.2
pathspec 0.12.1
pip 25.0.1
platformdirs 4.3.6
pluggy 1.5.0
pretend 1.0.9
py-cpuinfo 9.0.0
pycparser 2.22
pyenchant 3.2.2
Pygments 2.18.0
pyproject_hooks 1.2.0
pytest 8.3.3
pytest-benchmark 5.1.0
pytest-cov 6.0.0
pytest-randomly 3.16.0
pytest-xdist 3.6.1
readme_renderer 44.0
requests 2.32.3
ruff 0.8.0
setuptools 73.0.1
snowballstemmer 2.2.0
Sphinx 8.1.3
sphinx-rtd-theme 3.0.2
sphinxcontrib-applehelp 2.0.0
sphinxcontrib-devhelp 2.0.0
sphinxcontrib-htmlhelp 2.1.0
sphinxcontrib-jquery 4.1
sphinxcontrib-jsmath 1.0.1
sphinxcontrib-qthelp 2.0.0
sphinxcontrib-serializinghtml 2.0.0
sphinxcontrib-spelling 8.0.0
tomli 2.1.0
typing_extensions 4.12.2
urllib3 2.2.3
uv 0.5.29
virtualenv 20.28.0

rustc --version

rustc 1.85.0 (4d91de4e4 2025-02-17)

"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"

** Visual Studio 2022 Developer Command Prompt v17.13.2
** Copyright (c) 2022 Microsoft Corporation

[vcvarsall.bat] Environment initialized for: 'x64'

echo %OPENSSL_DIR%

C:\OpenSSL\OpenSSL

echo %OPENSSL_STATIC%

1

nox -e local

nox > Running session local
nox > Creating virtual environment (uv) using python.exe in .nox\local
nox > uv pip install -c ci-constraints-requirements.txt -e ./vectors
Using Python 3.12.3 environment at: .nox\local
Resolved 1 package in 5ms
Built cryptography-vectors @ file:////github/cryptography-44.0.2/vectors
Prepared 1 package in 998ms
Installed 1 package in 12ms

cryptography-vectors==44.0.2 (from file:////github/cryptography-44.0.2/vectors)
nox > uv pip install -c ci-constraints-requirements.txt 'maturin>=1,<2' 'cffi>=1.12; platform_python_implementation != '"'"'PyPy'"'"'' 'setuptools!=74.0.0,!=74.1.0,!=74.1.1,!=74.1.2' 'ruff >=0.3.6' 'mypy >=1.4' 'check-sdist; python_version >= '"'"'3.8'"'"'' 'click >=8.0.1' cryptography_vectors==44.0.2 'pytest >=7.4.0' 'pytest-benchmark >=4.0' 'pytest-cov >=2.10.1' 'pytest-xdist >=3.5.0' 'pretend >=0.7' 'certifi >=2024' 'bcrypt >=3.1.5' 'nox >=2024.04.15' 'nox[uv] >=2024.03.02; python_version >= '"'"'3.8'"'"''
Using Python 3.12.3 environment at: .nox\local
Resolved 36 packages in 829ms
Prepared 35 packages in 5.73s
Installed 35 packages in 478ms

argcomplete==3.5.1

bcrypt==4.3.0

build==1.2.2.post1

certifi==2024.8.30

cffi==1.17.1

check-sdist==1.2.0

click==8.1.7

colorama==0.4.6

colorlog==6.9.0

coverage==7.6.8

distlib==0.3.9

execnet==2.1.1

filelock==3.16.1

iniconfig==2.0.0

maturin==1.8.2

mypy==1.13.0

mypy-extensions==1.0.0

nox==2024.10.9

packaging==24.2

pathspec==0.12.1

platformdirs==4.3.6

pluggy==1.5.0

pretend==1.0.9

py-cpuinfo==9.0.0

pycparser==2.22

pyproject-hooks==1.2.0

pytest==8.3.3

pytest-benchmark==5.1.0

pytest-cov==6.0.0

pytest-xdist==3.6.1

ruff==0.8.0

setuptools==75.8.2

typing-extensions==4.12.2

uv==0.5.29

virtualenv==20.28.0
nox > ruff format .
247 files left unchanged
nox > ruff check .
All checks passed!
nox > cargo fmt --all
nox > cargo check --all --tests
Compiling proc-macro2 v1.0.92
Compiling unicode-ident v1.0.14
Compiling target-lexicon v0.12.16
Compiling shlex v1.3.0
Compiling vcpkg v0.2.15
Compiling pkg-config v0.3.31
Compiling libc v0.2.166
Compiling once_cell v1.20.2
Checking cfg-if v1.0.0
Compiling openssl v0.10.68
Checking foreign-types-shared v0.1.1
Compiling cc v1.2.1
Compiling autocfg v1.4.0
Checking foreign-types v0.3.2
Checking itoa v1.0.14
Checking bitflags v2.6.0
Compiling heck v0.5.0
Compiling indoc v2.0.5
Checking unindent v0.2.3
Compiling cryptography-key-parsing v0.1.0 (\github\cryptography-44.0.2\src\rust\cryptography-key-parsing)
Compiling cryptography-openssl v0.1.0 (\github\cryptography-44.0.2\src\rust\cryptography-openssl)
Checking base64 v0.22.1
Compiling cryptography-rust v0.1.0 (\github\cryptography-44.0.2\src\rust)
Compiling memoffset v0.9.1
Checking self_cell v1.0.4
Checking pem v3.0.4
Compiling pyo3-build-config v0.23.5
Compiling quote v1.0.37
Compiling syn v2.0.89
Compiling openssl-sys v0.9.104
Compiling cryptography-cffi v0.1.0 (\github\cryptography-44.0.2\src\rust\cryptography-cffi)
error: failed to run custom build command for cryptography-cffi v0.1.0 (<base dir>\github\cryptography-44.0.2\src\rust\cryptography-cffi)

Caused by:
process didn't exit successfully: \github\cryptography-44.0.2\target\debug\build\cryptography-cffi-dc34229e3e50e927\build-script-build` (exit code: 101)
--- stdout
cargo:rerun-if-env-changed=PYO3_PYTHON
cargo:rerun-if-changed=../../_cffi_src/
cargo:rerun-if-changed=../../cryptography/about.py

--- stderr

thread 'main' panicked at src\rust\cryptography-cffi\build.rs:35:10:
failed to execute build_openssl.py: Error { kind: NotFound, message: "program not found" }
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
nox > Command cargo check --all --tests failed with exit code 101
nox > Session local failed.

alex · 2025-03-03T20:19:07Z

FYI your messages are effectively impossible to read, please use markdown formatting.

lryindra · 2025-03-03T21:02:56Z

FYI your messages are effectively impossible to read, please use markdown formatting.

I updated the format on all my comments

alex · 2025-03-04T12:53:12Z

Thank you. In the future, markdown code blocks are preferable for shell transcripts.

Can you show me what the full contents of C:\OpenSSL\OpenSSL (e.g., with tree or similar).

lryindra · 2025-03-04T15:17:21Z

here are the contents of C:\OpenSSL\OpenSSL

c:\OpenSSL\OpenSSL>dir

 Directory of c:\OpenSSL\OpenSSL

02/27/2025  11:47 AM    <DIR>          .
02/27/2025  11:47 AM    <DIR>          ..
02/27/2025  11:47 AM    <DIR>          bin
02/27/2025  11:49 AM    <DIR>          html
02/27/2025  11:47 AM    <DIR>          include
02/27/2025  11:47 AM    <DIR>          lib

this folder was created when I ran these commands for building openssl

perl Configure enable-fips --prefix=C:\OpenSSL\OpenSSL --openssldir=C:\OpenSSL\SSL VC-WIN64A
nmake
nmake install

alex · 2025-03-04T15:19:32Z

Please show me recursively the contents of bin, include, and lib.

lryindra · 2025-03-04T15:28:59Z

c:\OpenSSL\OpenSSL>tree /F bin

Folder PATH listing for volume Windows
Volume serial number is 0000014C 7EA1:F0DD
C:\OPENSSL\OPENSSL\BIN
    c_rehash.pl
    libcrypto-3-x64.dll
    libcrypto-3-x64.pdb
    libssl-3-x64.dll
    libssl-3-x64.pdb
    openssl.exe
    openssl.pdb

c:\OpenSSL\OpenSSL>tree /F include

Folder PATH listing for volume Windows
Volume serial number is 00000202 7EA1:F0DD
C:\OPENSSL\OPENSSL\INCLUDE
└───openssl
        aes.h
        applink.c
        asn1.h
        asn1err.h
        asn1t.h
        asn1_mac.h
        async.h
        asyncerr.h
        bio.h
        bioerr.h
        blowfish.h
        bn.h
        bnerr.h
        buffer.h
        buffererr.h
        camellia.h
        cast.h
        cmac.h
        cmp.h
        cmperr.h
        cmp_util.h
        cms.h
        cmserr.h
        comp.h
        comperr.h
        conf.h
        conferr.h
        configuration.h
        conftypes.h
        conf_api.h
        core.h
        core_dispatch.h
        core_names.h
        core_object.h
        crmf.h
        crmferr.h
        crypto.h
        cryptoerr.h
        cryptoerr_legacy.h
        ct.h
        cterr.h
        decoder.h
        decodererr.h
        des.h
        dh.h
        dherr.h
        dsa.h
        dsaerr.h
        dtls1.h
        ebcdic.h
        ec.h
        ecdh.h
        ecdsa.h
        ecerr.h
        encoder.h
        encodererr.h
        engine.h
        engineerr.h
        err.h
        ess.h
        esserr.h
        evp.h
        evperr.h
        e_os2.h
        fipskey.h
        fips_names.h
        hmac.h
        http.h
        httperr.h
        idea.h
        kdf.h
        kdferr.h
        lhash.h
        macros.h
        md2.h
        md4.h
        md5.h
        mdc2.h
        modes.h
        objects.h
        objectserr.h
        obj_mac.h
        ocsp.h
        ocsperr.h
        opensslconf.h
        opensslv.h
        ossl_typ.h
        params.h
        param_build.h
        pem.h
        pem2.h
        pemerr.h
        pkcs12.h
        pkcs12err.h
        pkcs7.h
        pkcs7err.h
        proverr.h
        provider.h
        prov_ssl.h
        rand.h
        randerr.h
        rc2.h
        rc4.h
        rc5.h
        ripemd.h
        rsa.h
        rsaerr.h
        safestack.h
        seed.h
        self_test.h
        sha.h
        srp.h
        srtp.h
        ssl.h
        ssl2.h
        ssl3.h
        sslerr.h
        sslerr_legacy.h
        stack.h
        store.h
        storeerr.h
        symhacks.h
        tls1.h
        trace.h
        ts.h
        tserr.h
        txt_db.h
        types.h
        ui.h
        uierr.h
        whrlpool.h
        x509.h
        x509err.h
        x509v3.h
        x509v3err.h
        x509_vfy.h
        __DECC_INCLUDE_EPILOGUE.H
        __DECC_INCLUDE_PROLOGUE.H

c:\OpenSSL\OpenSSL>tree /F lib

Folder PATH listing for volume Windows
Volume serial number is 000001ED 7EA1:F0DD
C:\OPENSSL\OPENSSL\LIB
│   libcrypto.lib
│   libssl.lib
│
├───engines-3
│       capi.dll
│       capi.pdb
│       loader_attic.dll
│       loader_attic.pdb
│       padlock.dll
│       padlock.pdb
│
└───ossl-modules
        fips.dll
        fips.pdb
        legacy.dll
        legacy.pdb

alex · 2025-03-05T00:17:52Z

Thanks. Unfortunately I don't see anything obviously wrong with any of these steps.

The error message "The specified module could not be found" seems (as far as I can tell) to indicate that a dynamic library that the cryptography DLL relies on isn't on the system. I guess the next move would be to figure out which module it is that's missing, but I don't know enough about Windows to tell you how to do that. On linux there are some environment variables you can set to make the dynamic linker log a bunch of stuff.

lryindra · 2025-03-05T16:52:24Z

when I run the following from MINGW I get "nox >Program cargo not found." As you can see bellow, I can still pull the version for rustc and cargo from the same terminal.

python -m virtualenv myenv
source myenv/Scripts/activate
pip install -r ci-constraints-requirements.txt
nox -e local

and to reiterate

$ rustc --version
- rustc 1.85.0 (4d91de4e4 2025-02-17)
cargo --version
- cargo 1.85.0 (d73d2caf9 2024-12-31)
echo $OPENSSL_DIR
- C:\OpenSSL\OpenSSL
echo $OPENSSL_STATIC
- 1
python --version
- Python 3.12.3

Since I'm in MinGW, I'm not running the batch file to setup Visual Studio Build Tools.

alex · 2025-03-05T16:56:00Z

mingw is a different environment and I honestly have no idea if it's supported or not.

…

On Wed, Mar 5, 2025 at 11:52 AM yindra ***@***.***> wrote: when I run the following from MINGW I get "nox >Program cargo not found." As you can see bellow, I can still pull the version for rustc and cargo from the same terminal. python -m virtualenv myenv source myenv/Scripts/activate pip install -r ci-constraints-requirements.txt nox -e local and to reiterate - $ rustc --version - rustc 1.85.0 (4d91de4e4 2025-02-17) - cargo --version - cargo 1.85.0 (d73d2caf9 2024-12-31) - echo $OPENSSL_DIR - C:\OpenSSL\OpenSSL - echo $OPENSSL_STATIC - 1 - python --version - Python 3.12.3 Since I'm in MinGW, I'm not running the batch file to setup Visual Studio Build Tools. — Reply to this email directly, view it on GitHub <#12547 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAAGBA4KEO6RTUE7AZQTPT2S4TV5AVCNFSM6AAAAABYHP3ED6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMBRGUZDAMRWGM> . You are receiving this because you commented.Message ID: ***@***.***> [image: lryindra]*lryindra* left a comment (pyca/cryptography#12547) <#12547 (comment)> when I run the following from MINGW I get "nox >Program cargo not found." As you can see bellow, I can still pull the version for rustc and cargo from the same terminal. python -m virtualenv myenv source myenv/Scripts/activate pip install -r ci-constraints-requirements.txt nox -e local and to reiterate - $ rustc --version - rustc 1.85.0 (4d91de4e4 2025-02-17) - cargo --version - cargo 1.85.0 (d73d2caf9 2024-12-31) - echo $OPENSSL_DIR - C:\OpenSSL\OpenSSL - echo $OPENSSL_STATIC - 1 - python --version - Python 3.12.3 Since I'm in MinGW, I'm not running the batch file to setup Visual Studio Build Tools. — Reply to this email directly, view it on GitHub <#12547 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAAGBA4KEO6RTUE7AZQTPT2S4TV5AVCNFSM6AAAAABYHP3ED6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDOMBRGUZDAMRWGM> . You are receiving this because you commented.Message ID: ***@***.***>

-- All that is necessary for evil to succeed is for good people to do nothing.

lryindra · 2025-03-05T17:38:44Z

So running "nox -e local" in MINGW means that it is not finding cargo or openssl on my PATH. I did try to bypass the first error by updating noxfile.py with the exact location of cargo.exe and then i got this error:

   Compiling cryptography-cffi v0.1.0 (<base dir>\cryptography-44.0.2\src\rust\cryptography-cffi)
   Compiling syn v2.0.89
error: failed to run custom build command for `cryptography-cffi v0.1.0 (<base dir>\cryptography-44.0.2\src\rust\cryptography-cffi)`

Caused by:
  process didn't exit successfully: `<base dir>\cryptography-44.0.2\target\debug\build\cryptography-cffi-dc34229e3e50e927\build-script-build` (exit code: 101)
  --- stdout
  cargo:rerun-if-env-changed=PYO3_PYTHON
  cargo:rerun-if-changed=../../_cffi_src/
  cargo:rerun-if-changed=../../cryptography/__about__.py

  --- stderr

  thread 'main' panicked at src\rust\cryptography-cffi\build.rs:35:10:
  failed to execute build_openssl.py: Error { kind: NotFound, message: "program not found" }
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
nox > Command <user dir>/.cargo/bin/cargo.exe check --all --tests failed with exit code 101
nox > Session local failed.

messense · 2025-03-06T08:59:10Z

It seems that you don't have python3 in $PATH

cryptography/src/rust/cryptography-cffi/build.rs

Lines 27 to 35 in 8e5978f

    
           let python = env::var("PYO3_PYTHON").unwrap_or_else(|_| "python3".to_string()); 
        
           println!("cargo:rerun-if-env-changed=PYO3_PYTHON"); 
        
           println!("cargo:rerun-if-changed=../../_cffi_src/"); 
        
           println!("cargo:rerun-if-changed=../../cryptography/__about__.py"); 
        
           let output = Command::new(&python) 
        
               .env("OUT_DIR", &out_dir) 
        
               .arg("../../_cffi_src/build_openssl.py") 
        
               .output() 
        
               .expect("failed to execute build_openssl.py");

alex added the waiting-on-reporter Issue is waiting on a reply from the reporter. It will be automatically cloesd if there is no reply. label Mar 3, 2025

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