Feat/poetry to uv migration (#1406)

* feat: Start migrating to UV

* feat: add uv to flows

* feat: update docs on Poetry -> uv

* feat: update docs and uv.locl

* feat: update tests and github CI

* feat: run ruff format

* feat: update typechecking

* feat: fix type checking

* feat: update python version

* feat: type checking gic

* feat: adapt uv command to run the tool repo

* Adapt tool build command to uv

* feat: update logic to let only projects with crew to be deployed

* feat: add uv to tools

* fix; tests

* fix: remove breakpoint

* fix :test

* feat: add crewai update to migrate from poetry to uv

* fix: tests

* feat: add validation for ˆ character on pyproject

* feat: add run_crew to pyproject if doesnt exist

* feat: add validation for poetry migration

* fix: warning

---------

Co-authored-by: Vinicius Brasil <vini@hey.com>

src/crewai/cli/cli.py

@@ -21,6 +21,7 @@ from .run_crew import run_crew
 from .run_flow import run_flow
 from .tools.main import ToolCommand
 from .train_crew import train_crew
+from .update_crew import update_crew
 
 
 @click.group()
@@ -188,6 +189,12 @@ def run():
     run_crew()
 
 
+@crewai.command()
+def update():
+    """Update the pyproject.toml of the Crew project to use uv."""
+    update_crew()
+
+
 @crewai.command()
 def signup():
     """Sign Up/Login to CrewAI+."""
@@ -276,7 +283,13 @@ def tool_install(handle: str):
 
 
 @tool.command(name="publish")
-@click.option("--force", is_flag=True, show_default=True, default=False, help="Bypasses Git remote validations")
+@click.option(
+    "--force",
+    is_flag=True,
+    show_default=True,
+    default=False,
+    help="Bypasses Git remote validations",
+)
 @click.option("--public", "is_public", flag_value=True, default=False)
 @click.option("--private", "is_public", flag_value=False)
 def tool_publish(is_public: bool, force: bool):

src/crewai/cli/evaluate_crew.py

@@ -5,13 +5,13 @@ import click
 
 def evaluate_crew(n_iterations: int, model: str) -> None:
     """
-    Test and Evaluate the crew by running a command in the Poetry environment.
+    Test and Evaluate the crew by running a command in the UV environment.
 
     Args:
         n_iterations (int): The number of iterations to test the crew.
         model (str): The model to test the crew with.
     """
-    command = ["poetry", "run", "test", str(n_iterations), model]
+    command = ["uv", "run", "test", str(n_iterations), model]
 
     try:
         if n_iterations <= 0:

src/crewai/cli/install_crew.py

@@ -5,13 +5,10 @@ import click
 
 def install_crew() -> None:
     """
-    Install the crew by running the Poetry command to lock and install.
+    Install the crew by running the UV command to lock and install.
     """
     try:
-        subprocess.run(["poetry", "lock"], check=True, capture_output=False, text=True)
-        subprocess.run(
-            ["poetry", "install"], check=True, capture_output=False, text=True
-        )
+        subprocess.run(["uv", "sync"], check=True, capture_output=False, text=True)
 
     except subprocess.CalledProcessError as e:
         click.echo(f"An error occurred while running the crew: {e}", err=True)

src/crewai/cli/plot_flow.py

@@ -5,9 +5,9 @@ import click
 
 def plot_flow() -> None:
     """
-    Plot the flow by running a command in the Poetry environment.
+    Plot the flow by running a command in the UV environment.
     """
-    command = ["poetry", "run", "plot_flow"]
+    command = ["uv", "run", "plot_flow"]
 
     try:
         result = subprocess.run(command, capture_output=False, text=True, check=True)

src/crewai/cli/replay_from_task.py

@@ -1,4 +1,5 @@
 import subprocess
+
 import click
 
 
@@ -9,7 +10,7 @@ def replay_task_command(task_id: str) -> None:
     Args:
       task_id (str): The ID of the task to replay from.
     """
-    command = ["poetry", "run", "replay", task_id]
+    command = ["uv", "run", "replay", task_id]
 
     try:
         result = subprocess.run(command, capture_output=False, text=True, check=True)

src/crewai/cli/run_crew.py

@@ -5,19 +5,21 @@ import click
 
 def run_crew() -> None:
     """
-    Run the crew by running a command in the Poetry environment.
+    Run the crew by running a command in the UV environment.
     """
-    command = ["poetry", "run", "run_crew"]
-
+    command = ["uv", "run", "run_crew"]
     try:
-        result = subprocess.run(command, capture_output=False, text=True, check=True)
-
-        if result.stderr:
-            click.echo(result.stderr, err=True)
+        subprocess.run(command, capture_output=True, text=True, check=True)
 
     except subprocess.CalledProcessError as e:
         click.echo(f"An error occurred while running the crew: {e}", err=True)
-        click.echo(e.output, err=True)
+        click.echo(e.output, err=True, nl=True)
+        click.echo(e.stderr, err=True, nl=True)
+        if "table found" in e.stderr:
+            click.secho(
+                "It's possible that you are using an old version of crewAI that uses poetry, please run `crewai update` to update your pyproject.toml to use uv.",
+                fg="yellow",
+            )
 
     except Exception as e:
         click.echo(f"An unexpected error occurred: {e}", err=True)

src/crewai/cli/run_flow.py

@@ -5,9 +5,9 @@ import click
 
 def run_flow() -> None:
     """
-    Run the flow by running a command in the Poetry environment.
+    Run the flow by running a command in the UV environment.
     """
-    command = ["poetry", "run", "run_flow"]
+    command = ["uv", "run", "run_flow"]
 
     try:
         result = subprocess.run(command, capture_output=False, text=True, check=True)

src/crewai/cli/templates/crew/README.md

@@ -4,17 +4,17 @@ Welcome to the {{crew_name}} Crew project, powered by [crewAI](https://crewai.co
 
 ## Installation
 
-Ensure you have Python >=3.10 <=3.13 installed on your system. This project uses [Poetry](https://python-poetry.org/) for dependency management and package handling, offering a seamless setup and execution experience.
+Ensure you have Python >=3.10 <=3.13 installed on your system. This project uses [UV](https://docs.astral.sh/uv/) for dependency management and package handling, offering a seamless setup and execution experience.
 
-First, if you haven't already, install Poetry:
+First, if you haven't already, install uv:
 
 ```bash
-pip install poetry
+pip install uv
 ```
 
 Next, navigate to your project directory and install the dependencies:
 
-1. First lock the dependencies and install them by using the CLI command:
+(Optional) Lock the dependencies and install them by using the CLI command:
 ```bash
 crewai install
 ```

src/crewai/cli/templates/crew/pyproject.toml

@@ -1,15 +1,14 @@
-[tool.poetry]
+[project]
 name = "{{folder_name}}"
 version = "0.1.0"
 description = "{{name}} using crewAI"
-authors = ["Your Name <you@example.com>"]
+authors = [{ name = "Your Name", email = "you@example.com" }]
+requires-python = ">=3.10,<=3.13"
+dependencies = [
+    "crewai[tools]>=0.67.1,<1.0.0"
+]
 
-[tool.poetry.dependencies]
-python = ">=3.10,<=3.13"
-crewai = { extras = ["tools"], version = ">=0.70.1,<1.0.0" }
-
-
-[tool.poetry.scripts]
+[project.scripts]
 {{folder_name}} = "{{folder_name}}.main:run"
 run_crew = "{{folder_name}}.main:run"
 train = "{{folder_name}}.main:train"
@@ -17,5 +16,5 @@ replay = "{{folder_name}}.main:replay"
 test = "{{folder_name}}.main:test"
 
 [build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
+requires = ["hatchling"]
+build-backend = "hatchling.build"

src/crewai/cli/templates/flow/README.md

@@ -4,18 +4,17 @@ Welcome to the {{crew_name}} Crew project, powered by [crewAI](https://crewai.co
 
 ## Installation
 
-Ensure you have Python >=3.10 <=3.13 installed on your system. This project uses [Poetry](https://python-poetry.org/) for dependency management and package handling, offering a seamless setup and execution experience.
+Ensure you have Python >=3.10 <=3.13 installed on your system. This project uses [UV](https://docs.astral.sh/uv/) for dependency management and package handling, offering a seamless setup and execution experience.
 
-First, if you haven't already, install Poetry:
+First, if you haven't already, install uv:
 
 ```bash
-pip install poetry
+pip install uv
 ```
 
 Next, navigate to your project directory and install the dependencies:
 
-1. First lock the dependencies and then install them:
-
+(Optional) Lock the dependencies and install them by using the CLI command:
 ```bash
 crewai install
 ```

src/crewai/cli/templates/flow/pyproject.toml

@@ -1,19 +1,19 @@
-[tool.poetry]
+[project]
 name = "{{folder_name}}"
 version = "0.1.0"
 description = "{{name}} using crewAI"
-authors = ["Your Name <you@example.com>"]
+authors = [{ name = "Your Name", email = "you@example.com" }]
+requires-python = ">=3.10,<=3.13"
+dependencies = [
+    "crewai[tools]>=0.67.1,<1.0.0",
+    "asyncio"
+]
 
-[tool.poetry.dependencies]
-python = ">=3.10,<=3.13"
-crewai = { extras = ["tools"], version = ">=0.70.1,<1.0.0" }
-asyncio = "*"
-
-[tool.poetry.scripts]
+[project.scripts]
 {{folder_name}} = "{{folder_name}}.main:main"
 run_flow = "{{folder_name}}.main:main"
 plot_flow = "{{folder_name}}.main:plot"
 
 [build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
+requires = ["hatchling"]
+build-backend = "hatchling.build"

src/crewai/cli/templates/pipeline_router/pyproject.toml

@@ -1,20 +1,21 @@
-[tool.poetry]
+[project]
 name = "{{folder_name}}"
 version = "0.1.0"
 description = "{{name}} using crewAI"
 authors = ["Your Name <you@example.com>"]
+requires-python = ">=3.10,<=3.13"
+dependencies = [
+    "crewai[tools]>=0.67.1,<1.0.0"
+]
 
-[tool.poetry.dependencies]
-python = ">=3.10,<=3.13"
-crewai = { extras = ["tools"], version = ">=0.70.1,<1.0.0" }
-
-
-[tool.poetry.scripts]
+[project.scripts]
 {{folder_name}} = "{{folder_name}}.main:main"
+run_crew = "{{folder_name}}.main:main"
 train = "{{folder_name}}.main:train"
 replay = "{{folder_name}}.main:replay"
 test = "{{folder_name}}.main:test"
 
 [build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+

src/crewai/cli/templates/tool/README.md

@@ -6,13 +6,13 @@ custom tools to power up your crews.
 ## Installing
 
 Ensure you have Python >=3.10 <=3.13 installed on your system. This project
-uses [Poetry](https://python-poetry.org/) for dependency management and package
+uses [UV](https://docs.astral.sh/uv/) for dependency management and package
 handling, offering a seamless setup and execution experience.
 
-First, if you haven't already, install Poetry:
+First, if you haven't already, install `uv`:
 
 ```bash
-pip install poetry
+pip install uv
 ```
 
 Next, navigate to your project directory and install the dependencies with:

src/crewai/cli/tools/main.py

@@ -1,20 +1,22 @@
 import base64
-from pathlib import Path
-import click
 import os
+import platform
 import subprocess
 import tempfile
+from pathlib import Path
+
+import click
+from rich.console import Console
 
-from crewai.cli.command import BaseCommand, PlusAPIMixin
 from crewai.cli import git
+from crewai.cli.command import BaseCommand, PlusAPIMixin
 from crewai.cli.utils import (
-    get_project_name,
     get_project_description,
+    get_project_name,
     get_project_version,
     tree_copy,
     tree_find_and_replace,
 )
-from rich.console import Console
 
 console = Console()
 
@@ -24,6 +26,8 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
     A class to handle tool repository related operations for CrewAI projects.
     """
 
+    BASE_URL = "https://app.crewai.com/pypi/"
+
     def __init__(self):
         BaseCommand.__init__(self)
         PlusAPIMixin.__init__(self, telemetry=self._telemetry)
@@ -82,7 +86,7 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
 
         with tempfile.TemporaryDirectory() as temp_build_dir:
             subprocess.run(
-                ["poetry", "build", "-f", "sdist", "--output", temp_build_dir],
+                ["uv", "build", "--sdist", "--out-dir", temp_build_dir],
                 check=True,
                 capture_output=False,
             )
@@ -92,7 +96,7 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
             )
             if not tarball_filename:
                 console.print(
-                    "Project build failed. Please ensure that the command `poetry build -f sdist` completes successfully.",
+                    "Project build failed. Please ensure that the command `uv build --sdist` completes successfully.",
                     style="bold red",
                 )
                 raise SystemExit
@@ -149,62 +153,39 @@ class ToolCommand(BaseCommand, PlusAPIMixin):
             raise SystemExit
 
         login_response_json = login_response.json()
-        for repository in login_response_json["repositories"]:
-            self._add_repository_to_poetry(
-                repository, login_response_json["credential"]
-            )
+        self._set_netrc_credentials(login_response_json["credential"])
 
         console.print(
-            "Succesfully authenticated to the tool repository.", style="bold green"
+            "Successfully authenticated to the tool repository.", style="bold green"
         )
 
-    def _add_repository_to_poetry(self, repository, credentials):
-        repository_handle = f"crewai-{repository['handle']}"
+    def _set_netrc_credentials(self, credentials):
+        # Create .netrc or _netrc file
+        netrc_filename = "_netrc" if platform.system() == "Windows" else ".netrc"
+        netrc_path = Path.home() / netrc_filename
 
-        add_repository_command = [
-            "poetry",
-            "source",
-            "add",
-            "--priority=explicit",
-            repository_handle,
-            repository["url"],
-        ]
-        add_repository_result = subprocess.run(
-            add_repository_command, text=True, check=True
-        )
+        netrc_content = f"""machine app.crewai.com
+login {credentials['username']}
+password {credentials['password']}
+"""
 
-        if add_repository_result.stderr:
-            click.echo(add_repository_result.stderr, err=True)
-            raise SystemExit
+        with open(netrc_path, "a") as netrc_file:
+            netrc_file.write(netrc_content)
 
-        add_repository_credentials_command = [
-            "poetry",
-            "config",
-            f"http-basic.{repository_handle}",
-            credentials["username"],
-            credentials["password"],
-        ]
-        add_repository_credentials_result = subprocess.run(
-            add_repository_credentials_command,
-            capture_output=False,
-            text=True,
-            check=True,
-        )
-
-        if add_repository_credentials_result.stderr:
-            click.echo(add_repository_credentials_result.stderr, err=True)
-            raise SystemExit
+        # Set appropriate permissions for Unix-like systems
+        if platform.system() != "Windows":
+            os.chmod(netrc_path, 0o600)
+        console.print(f"Added credentials to {netrc_filename}", style="bold green")
 
     def _add_package(self, tool_details):
         tool_handle = tool_details["handle"]
         repository_handle = tool_details["repository"]["handle"]
-        pypi_index_handle = f"crewai-{repository_handle}"
 
         add_package_command = [
-            "poetry",
+            "uv",
             "add",
-            "--source",
-            pypi_index_handle,
+            "--extra-index-url",
+            self.BASE_URL + repository_handle,
             tool_handle,
         ]
         add_package_result = subprocess.run(

src/crewai/cli/train_crew.py

@@ -5,12 +5,12 @@ import click
 
 def train_crew(n_iterations: int, filename: str) -> None:
     """
-    Train the crew by running a command in the Poetry environment.
+    Train the crew by running a command in the UV environment.
 
     Args:
         n_iterations (int): The number of iterations to train the crew.
     """
-    command = ["poetry", "run", "train", str(n_iterations), filename]
+    command = ["uv", "run", "train", str(n_iterations), filename]
 
     try:
         if n_iterations <= 0:

src/crewai/cli/update_crew.py

@@ -0,0 +1,115 @@
+import shutil
+
+import tomli_w
+import tomllib
+
+
+def update_crew() -> None:
+    """Update the pyproject.toml of the Crew project to use uv."""
+    migrate_pyproject("pyproject.toml", "pyproject.toml")
+
+
+def migrate_pyproject(input_file, output_file):
+    """
+    Migrate the pyproject.toml to the new format.
+
+    This function is used to migrate the pyproject.toml to the new format.
+    And it will be used to migrate the pyproject.toml to the new format when uv is used.
+    When the time comes that uv supports the new format, this function will be deprecated.
+    """
+
+    # Read the input pyproject.toml
+    with open(input_file, "rb") as f:
+        pyproject = tomllib.load(f)
+
+    # Initialize the new project structure
+    new_pyproject = {
+        "project": {},
+        "build-system": {"requires": ["hatchling"], "build-backend": "hatchling.build"},
+    }
+
+    # Migrate project metadata
+    if "tool" in pyproject and "poetry" in pyproject["tool"]:
+        poetry = pyproject["tool"]["poetry"]
+        new_pyproject["project"]["name"] = poetry.get("name")
+        new_pyproject["project"]["version"] = poetry.get("version")
+        new_pyproject["project"]["description"] = poetry.get("description")
+        new_pyproject["project"]["authors"] = [
+            {
+                "name": author.split("<")[0].strip(),
+                "email": author.split("<")[1].strip(">").strip(),
+            }
+            for author in poetry.get("authors", [])
+        ]
+        new_pyproject["project"]["requires-python"] = poetry.get("python")
+    else:
+        # If it's already in the new format, just copy the project section
+        new_pyproject["project"] = pyproject.get("project", {})
+
+    # Migrate or copy dependencies
+    if "dependencies" in new_pyproject["project"]:
+        # If dependencies are already in the new format, keep them as is
+        pass
+    elif "dependencies" in poetry:
+        new_pyproject["project"]["dependencies"] = []
+        for dep, version in poetry["dependencies"].items():
+            if isinstance(version, dict):  # Handle extras
+                extras = ",".join(version.get("extras", []))
+                new_dep = f"{dep}[{extras}]"
+                if "version" in version:
+                    new_dep += parse_version(version["version"])
+            elif dep == "python":
+                new_pyproject["project"]["requires-python"] = version
+                continue
+            else:
+                new_dep = f"{dep}{parse_version(version)}"
+            new_pyproject["project"]["dependencies"].append(new_dep)
+
+    # Migrate or copy scripts
+    if "scripts" in poetry:
+        new_pyproject["project"]["scripts"] = poetry["scripts"]
+    elif "scripts" in pyproject.get("project", {}):
+        new_pyproject["project"]["scripts"] = pyproject["project"]["scripts"]
+    else:
+        new_pyproject["project"]["scripts"] = {}
+
+    if (
+        "run_crew" not in new_pyproject["project"]["scripts"]
+        and len(new_pyproject["project"]["scripts"]) > 0
+    ):
+        # Extract the module name from any existing script
+        existing_scripts = new_pyproject["project"]["scripts"]
+        module_name = next(
+            (value.split(".")[0] for value in existing_scripts.values() if "." in value)
+        )
+
+        new_pyproject["project"]["scripts"]["run_crew"] = f"{module_name}.main:run"
+
+    # Migrate optional dependencies
+    if "extras" in poetry:
+        new_pyproject["project"]["optional-dependencies"] = poetry["extras"]
+
+    # Backup the old pyproject.toml
+    backup_file = "pyproject-old.toml"
+    shutil.copy2(input_file, backup_file)
+    print(f"Original pyproject.toml backed up as {backup_file}")
+
+    # Write the new pyproject.toml
+    with open(output_file, "wb") as f:
+        tomli_w.dump(new_pyproject, f)
+
+    print(f"Migration complete. New pyproject.toml written to {output_file}")
+
+
+def parse_version(version: str) -> str:
+    """Parse and convert version specifiers."""
+    if version.startswith("^"):
+        main_lib_version = version[1:].split(",")[0]
+        addtional_lib_version = None
+        if len(version[1:].split(",")) > 1:
+            addtional_lib_version = version[1:].split(",")[1]
+
+        return f">={main_lib_version}" + (
+            f",{addtional_lib_version}" if addtional_lib_version else ""
+        )
+    return version

src/crewai/cli/utils.py

@@ -1,13 +1,14 @@
+import importlib.metadata
 import os
 import shutil
-import click
 import sys
-import importlib.metadata
+from functools import reduce
+from typing import Any, Dict, List
+
+import click
+from rich.console import Console
 
 from crewai.cli.authentication.utils import TokenManager
-from functools import reduce
-from rich.console import Console
-from typing import Any, Dict, List
 
 if sys.version_info >= (3, 11):
     import tomllib
@@ -55,17 +56,14 @@ def simple_toml_parser(content):
 def parse_toml(content):
     if sys.version_info >= (3, 11):
         return tomllib.loads(content)
-    else:
-        return simple_toml_parser(content)
+    return simple_toml_parser(content)
 
 
 def get_project_name(
     pyproject_path: str = "pyproject.toml", require: bool = False
 ) -> str | None:
     """Get the project name from the pyproject.toml file."""
-    return _get_project_attribute(
-        pyproject_path, ["tool", "poetry", "name"], require=require
-    )
+    return _get_project_attribute(pyproject_path, ["project", "name"], require=require)
 
 
 def get_project_version(
@@ -73,7 +71,7 @@ def get_project_version(
 ) -> str | None:
     """Get the project version from the pyproject.toml file."""
     return _get_project_attribute(
-        pyproject_path, ["tool", "poetry", "version"], require=require
+        pyproject_path, ["project", "version"], require=require
     )
 
 
@@ -82,7 +80,7 @@ def get_project_description(
 ) -> str | None:
     """Get the project description from the pyproject.toml file."""
     return _get_project_attribute(
-        pyproject_path, ["tool", "poetry", "description"], require=require
+        pyproject_path, ["project", "description"], require=require
     )
 
 
@@ -97,10 +95,9 @@ def _get_project_attribute(
             pyproject_content = parse_toml(f.read())
 
         dependencies = (
-            _get_nested_value(pyproject_content, ["tool", "poetry", "dependencies"])
-            or {}
+            _get_nested_value(pyproject_content, ["project", "dependencies"]) or []
         )
-        if "crewai" not in dependencies:
+        if not any(True for dep in dependencies if "crewai" in dep):
             raise Exception("crewai is not in the dependencies.")
 
         attribute = _get_nested_value(pyproject_content, keys)