fix: import boto3/hvac/keyring lazily so the CLI runs without them (v1.2.1)

Closes #1.

The integrations module imported `boto3`, `hvac`, `keyring` and
`botocore.exceptions` at module load time, and the CLI imports that module at
startup. As a result, any problem in those packages crashed every command,
including plain password generation that never touches AWS, Vault or the OS
keychain. This is what issue #1 hit: a broken `boto3` in the user's
environment (`boto.vendored.six.moves`) brought down the whole tool.

Fixed
- Move the `boto3`, `hvac`, `keyring` and `botocore.exceptions` imports inside
  the methods that use them (AWS Secrets Manager, HashiCorp Vault, OS keychain).
  Password generation and all non-integration features now run with no
  dependency on those packages being importable.
- When an integration is used and its package is missing or broken, only that
  feature fails, with a clear error, instead of taking down the entire CLI.

Bumps version to 1.2.1.

Author: TarekCheikh

cryptex/__init__.py

@@ -3,7 +3,7 @@
 A production-ready CLI tool for generating secure passwords with advanced features.
 """
 
-__version__ = "1.2.0"
+__version__ = "1.2.1"
 __author__ = "Tarek CHEIKH"
 __email__ = "tarek@tocconsulting.fr"
 __description__ = "Enhanced random password generator with advanced security features"

cryptex/cli.py

@@ -236,7 +236,7 @@
     help='Save generated password(s)/TOTP details to a file '
          'instead of printing to the terminal.'
 )
-@click.version_option(version='1.2.0', prog_name='cryptex')
+@click.version_option(version='1.2.1', prog_name='cryptex')
 def main(
     length: int,
     count: int,

cryptex/integrations.py

@@ -6,17 +6,18 @@
 import sys
 from typing import Dict, List, Optional
 
-import boto3
-import click
-import hvac
-import keyring
-from botocore.exceptions import ClientError, NoCredentialsError
+# boto3, hvac and keyring are imported lazily inside the methods that use
+# them. They pull in heavy/native dependencies, and importing them at module
+# load time would crash the entire CLI (even plain password generation) if
+# any of them is broken or missing in the user's environment.
 
 
 class AWSSecretsManager:
     """AWS Secrets Manager integration."""
 
     def __init__(self, region_name: str = 'us-east-1', profile_name: Optional[str] = None):
+        import boto3
+        from botocore.exceptions import NoCredentialsError
         try:
             # Create session with optional profile
             if profile_name:
@@ -37,6 +38,7 @@ def __init__(self, region_name: str = 'us-east-1', profile_name: Optional[str] =
 
     def save_secret(self, secret_name: str, secret_value: str, description: str = "") -> bool:
         """Save a secret to AWS Secrets Manager."""
+        from botocore.exceptions import ClientError
         try:
             # Try to create new secret
             self.client.create_secret(
@@ -72,6 +74,7 @@ class HashiCorpVault:
     """HashiCorp Vault integration."""
 
     def __init__(self, url: str = 'http://localhost:8200', token: Optional[str] = None):
+        import hvac
         self.client = hvac.Client(url=url, token=token)
 
         if not self.client.is_authenticated():
@@ -110,6 +113,7 @@ def __init__(self):
 
     def save_secret(self, service: str, username: str, password: str) -> bool:
         """Save a secret to OS keychain."""
+        import keyring
         try:
             keyring.set_password(service, username, password)
             return True

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "cryptex-cli"
-version = "1.2.0"
+version = "1.2.1"
 description = "Enhanced random password generator with advanced security features"
 authors = [
     {name = "Tarek CHEIKH", email = "tarek@tocconsulting.fr"},