Issue with pip install in virtual environment - Cargo, the Rust package manager, is not installed or is not on PATH

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I am using a python virtual environment to work on a project. After setting up my venv and pulling from git I tried to pip install -r requirements.txt but am getting an error below.

Collecting orjson==3.5.2
  Using cached orjson-3.5.2.tar.gz (740 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [6 lines of output]

      Cargo, the Rust package manager, is not installed or is not on PATH.
      This package requires Rust and Cargo to compile extensions. Install it through
      the system's package manager or via https://rustup.rs/

      Checking for Rust toolchain....
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

I am using Python version 3.10.2, pip version 22.0.4.

Any idea how to fix this? I installed rust but no fix.

I am not getting the errors below after moving my virtual enviroment to local.

Collecting orjson==3.5.2
  Using cached orjson-3.5.2.tar.gz (740 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [11 lines of output]
      💥 maturin failed
        Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
        Caused by: `cargo metadata` exited with an error: error: failed to run `rustc` to learn about target-specific information

      Caused by:
        process didn't exit successfully: `rustc - --crate-name ___ --print=file-names -Z mutable-noalias=yes --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=cfg` (exit code: 1)
        --- stderr
        error: the option `Z` is only accepted on the nightly compiler
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', 'C:\\Users\\jawan\\AppData\\Local\\Temp\\pip-modern-metadata-hjcwzhua', '--interpreter', 'C:\\Users\\jawan\\Desktop\\Programming\\imotor\\Scripts\\python.exe', '--manylinux=off', '--strip=on']' returned non-zero exit status 1.
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory C:\Users\jawan\AppData\Local\Temp\pip-modern-metadata-hjcwzhua --interpreter C:\Users\jawan\Desktop\Programming\imotor\Scripts\python.exe --manylinux=off --strip=on`
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
1 Answers

faced the similar problem. after installing 64bit version of python everything is working fine.

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