feat: Update README and add requirements.txt for rich library installation instructions

docker-manager/README.md

@@ -18,10 +18,11 @@ A Python command-line application to manage Docker containers defined in subdire
 
 - Python 3
 - Docker and Docker Compose (plugin) installed.
-- The `rich` Python library:
+- Python dependencies:
   ```bash
-  pip install rich
+  pip install -r ~/shell/docker-manager/requirements.txt
   ```
+  *Or manually:* `pip install rich`
 - A `~/docker/` directory containing subdirectories for each of your projects.
 - Each project subdirectory must contain a `docker-compose.yml`, `docker-compose.yaml`, `compose.yml`, or `compose.yaml` file.
 

docker-manager/docker-manager.py

@@ -37,11 +37,17 @@ import argparse
 import subprocess
 import json
 from pathlib import Path
-from rich.console import Console
+
-from rich.table import Table
+try:
-from rich.panel import Panel
+    from rich.console import Console
-from rich.text import Text
+    from rich.table import Table
-from rich import box
+    from rich.panel import Panel
+    from rich import box
+except ImportError:
+    print("Error: The 'rich' library is required but not installed.")
+    print("Please install it using: pip install -r ~/shell/docker-manager/requirements.txt")
+    print("Or directly: pip install rich")
+    exit(1)
 
 # Configuration
 DOCKER_ROOT = Path(os.path.expanduser("~/docker"))
@@ -261,15 +267,15 @@ def list_containers(projects):
                             update_status = "[dim]Not Monitored[/dim]"
 
                     # If version is still unknown, try to get from running container labels
-                    if version == "latest" or version == "unknown":
+                    if version in ("latest", "unknown"):
-                         inspect_cmd = ["docker", "inspect", c_name, "--format", "{{json .Config.Labels}}"]
+                        inspect_cmd = ["docker", "inspect", c_name, "--format", "{{json .Config.Labels}}"]
-                         inspect_res = run_command(inspect_cmd, path, capture_output=True)
+                        inspect_res = run_command(inspect_cmd, path, capture_output=True)
-                         if inspect_res and inspect_res.returncode == 0:
+                        if inspect_res and inspect_res.returncode == 0:
-                             try:
+                            try:
-                                 labels = json.loads(inspect_res.stdout)
+                                labels = json.loads(inspect_res.stdout)
-                                 version = get_image_version(labels)
+                                version = get_image_version(labels)
-                             except:
+                            except Exception:
-                                 pass
+                                pass
 
                     table.add_row(name, c_name, state, image, version, update_status)
 
@@ -367,7 +373,7 @@ def describe_project(projects, target):
                     except json.JSONDecodeError:
                         pass
                 else:
-                     console.print(Panel(table, title=f"[bold]{name}[/bold]", border_style="green"))
+                    console.print(Panel(table, title=f"[bold]{name}[/bold]", border_style="green"))
 
             except json.JSONDecodeError:
                 pass

docker-manager/requirements.txt

@@ -0,0 +1 @@
+rich>=13.0.0