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_build_command() — langchain Function Reference

Architecture documentation for the _build_command() function in _execution.py from the langchain codebase.

Function python LangChainCore Runnables calls 4 called by 2

Entity Profile

Dependency Diagram

graph TD
  0ca39ab6_f475_3199_9fda_998b3047cb82["_build_command()"]
  3ead6362_15e4_31b5_852b_83ad2c63fa17["DockerExecutionPolicy"]
  0ca39ab6_f475_3199_9fda_998b3047cb82 -->|defined in| 3ead6362_15e4_31b5_852b_83ad2c63fa17
  e4dfd7ef_1e04_5414_759b_eeaddac35815["_build_command()"]
  e4dfd7ef_1e04_5414_759b_eeaddac35815 -->|calls| 0ca39ab6_f475_3199_9fda_998b3047cb82
  ba1b6b39_fb63_7014_9fdb_7866618f263b["spawn()"]
  ba1b6b39_fb63_7014_9fdb_7866618f263b -->|calls| 0ca39ab6_f475_3199_9fda_998b3047cb82
  a45f9aa3_f5f0_035d_1dae_62dc52165b5e["_resolve_binary()"]
  0ca39ab6_f475_3199_9fda_998b3047cb82 -->|calls| a45f9aa3_f5f0_035d_1dae_62dc52165b5e
  73ea7e95_02e6_bd8d_5b08_873ffdee5093["_should_mount_workspace()"]
  0ca39ab6_f475_3199_9fda_998b3047cb82 -->|calls| 73ea7e95_02e6_bd8d_5b08_873ffdee5093
  e4dfd7ef_1e04_5414_759b_eeaddac35815["_build_command()"]
  0ca39ab6_f475_3199_9fda_998b3047cb82 -->|calls| e4dfd7ef_1e04_5414_759b_eeaddac35815
  3e8d5e89_0a16_467a_a1cf_2c14a1472ea3["_resolve_binary()"]
  0ca39ab6_f475_3199_9fda_998b3047cb82 -->|calls| 3e8d5e89_0a16_467a_a1cf_2c14a1472ea3
  style 0ca39ab6_f475_3199_9fda_998b3047cb82 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/langchain/agents/middleware/_execution.py lines 331–363

    def _build_command(
        self,
        workspace: Path,
        env: Mapping[str, str],
        command: Sequence[str],
    ) -> list[str]:
        binary = self._resolve_binary()
        full_command: list[str] = [binary, "run", "-i"]
        if self.remove_container_on_exit:
            full_command.append("--rm")
        if not self.network_enabled:
            full_command.extend(["--network", "none"])
        if self.memory_bytes is not None:
            full_command.extend(["--memory", str(self.memory_bytes)])
        if self._should_mount_workspace(workspace):
            host_path = str(workspace)
            full_command.extend(["-v", f"{host_path}:{host_path}"])
            full_command.extend(["-w", host_path])
        else:
            full_command.extend(["-w", "/"])
        if self.read_only_rootfs:
            full_command.append("--read-only")
        for key, value in env.items():
            full_command.extend(["-e", f"{key}={value}"])
        if self.cpus is not None:
            full_command.extend(["--cpus", self.cpus])
        if self.user is not None:
            full_command.extend(["--user", self.user])
        if self.extra_run_args:
            full_command.extend(self.extra_run_args)
        full_command.append(self.image)
        full_command.extend(command)
        return full_command

Domain

Subdomains

Defined In

Calls

Called By

Source

Frequently Asked Questions

What does _build_command() do?
_build_command() is a function in the langchain codebase, defined in libs/langchain_v1/langchain/agents/middleware/_execution.py.
Where is _build_command() defined?
_build_command() is defined in libs/langchain_v1/langchain/agents/middleware/_execution.py at line 331.
What does _build_command() call?
_build_command() calls 4 function(s): _build_command, _resolve_binary, _resolve_binary, _should_mount_workspace.
What calls _build_command()?
_build_command() is called by 2 function(s): _build_command, spawn.

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