diff --git a/src/auto_archiver/core/module.py b/src/auto_archiver/core/module.py
index 0888378..cb380cf 100644
--- a/src/auto_archiver/core/module.py
+++ b/src/auto_archiver/core/module.py
@@ -143,6 +143,7 @@ def available_modules(with_manifest: bool=False, limit_to_modules: List[str]= []
             if _LAZY_LOADED_MODULES.get(possible_module):
                 continue
             lazy_module = LazyBaseModule(possible_module, possible_module_path)
+
             _LAZY_LOADED_MODULES[possible_module] = lazy_module
 
             all_modules.append(lazy_module)
@@ -229,6 +230,9 @@ class LazyBaseModule:
         # check external dependencies are installed
         def check_deps(deps, check):
             for dep in deps:
+                if not len(dep):
+                    # clear out any empty strings that a user may have erroneously added
+                    continue
                 if not check(dep):
                     logger.error(f"Module '{self.name}' requires external dependency '{dep}' which is not available/setup. Have you installed the required dependencies for the '{self.name}' module? See the README for more information.")
                     exit(1)
diff --git a/src/auto_archiver/modules/api_db/__manifest__.py b/src/auto_archiver/modules/api_db/__manifest__.py
index c89165f..d22fa59 100644
--- a/src/auto_archiver/modules/api_db/__manifest__.py
+++ b/src/auto_archiver/modules/api_db/__manifest__.py
@@ -3,7 +3,7 @@
     "type": ["database"],
     "entry_point": "api_db:AAApiDb",
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["requests",
                    "loguru"],
     },
diff --git a/src/auto_archiver/modules/atlos/__manifest__.py b/src/auto_archiver/modules/atlos/__manifest__.py
index 459fefe..7ba2f72 100644
--- a/src/auto_archiver/modules/atlos/__manifest__.py
+++ b/src/auto_archiver/modules/atlos/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "atlos_storage",
     "type": ["storage"],
     "requires_setup": True,
-    "external_dependencies": {"python": ["loguru", "requests"], "bin": [""]},
+    "dependencies": {"python": ["loguru", "requests"], "bin": [""]},
     "configs": {
         "path_generator": {
             "default": "url",
diff --git a/src/auto_archiver/modules/atlos_db/__manifest__.py b/src/auto_archiver/modules/atlos_db/__manifest__.py
index 42ce560..8f9473f 100644
--- a/src/auto_archiver/modules/atlos_db/__manifest__.py
+++ b/src/auto_archiver/modules/atlos_db/__manifest__.py
@@ -3,7 +3,7 @@
     "type": ["database"],
     "entry_point": "atlos_db:AtlosDb",
     "requires_setup": True,
-    "external_dependencies":
+    "dependencies":
         {"python": ["loguru",
                     ""],
          "bin": [""]},
diff --git a/src/auto_archiver/modules/atlos_feeder/__manifest__.py b/src/auto_archiver/modules/atlos_feeder/__manifest__.py
index 0d90c8b..f2772f2 100644
--- a/src/auto_archiver/modules/atlos_feeder/__manifest__.py
+++ b/src/auto_archiver/modules/atlos_feeder/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Atlos Feeder",
     "type": ["feeder"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "requests"],
     },
     "configs": {
diff --git a/src/auto_archiver/modules/cli_feeder/__manifest__.py b/src/auto_archiver/modules/cli_feeder/__manifest__.py
index fe784c3..cf5c1b7 100644
--- a/src/auto_archiver/modules/cli_feeder/__manifest__.py
+++ b/src/auto_archiver/modules/cli_feeder/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "CLI Feeder",
     "type": ["feeder"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru"],
     },
     'entry_point': 'cli_feeder::CLIFeeder',
diff --git a/src/auto_archiver/modules/console_db/__manifest__.py b/src/auto_archiver/modules/console_db/__manifest__.py
index cd40496..a1d0d48 100644
--- a/src/auto_archiver/modules/console_db/__manifest__.py
+++ b/src/auto_archiver/modules/console_db/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Console Database",
     "type": ["database"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru"],
     },
     "description": """
diff --git a/src/auto_archiver/modules/csv_db/__manifest__.py b/src/auto_archiver/modules/csv_db/__manifest__.py
index 3131188..507ce14 100644
--- a/src/auto_archiver/modules/csv_db/__manifest__.py
+++ b/src/auto_archiver/modules/csv_db/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "CSV Database",
     "type": ["database"],
     "requires_setup": False,
-    "external_dependencies": {"python": ["loguru"]
+    "dependencies": {"python": ["loguru"]
                               },
     'entry_point': 'csv_db::CSVDb',
     "configs": {
diff --git a/src/auto_archiver/modules/csv_feeder/__manifest__.py b/src/auto_archiver/modules/csv_feeder/__manifest__.py
index 81c4dcd..b062ee6 100644
--- a/src/auto_archiver/modules/csv_feeder/__manifest__.py
+++ b/src/auto_archiver/modules/csv_feeder/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "CSV Feeder",
     "type": ["feeder"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru"],
         "bin": [""]
     },
diff --git a/src/auto_archiver/modules/gdrive_storage/__manifest__.py b/src/auto_archiver/modules/gdrive_storage/__manifest__.py
index b81b717..e24f21b 100644
--- a/src/auto_archiver/modules/gdrive_storage/__manifest__.py
+++ b/src/auto_archiver/modules/gdrive_storage/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Google Drive Storage",
     "type": ["storage"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": [
             "loguru",
             "google-api-python-client",
diff --git a/src/auto_archiver/modules/gsheet_db/__manifest__.py b/src/auto_archiver/modules/gsheet_db/__manifest__.py
index f2f1c35..f926adc 100644
--- a/src/auto_archiver/modules/gsheet_db/__manifest__.py
+++ b/src/auto_archiver/modules/gsheet_db/__manifest__.py
@@ -3,7 +3,7 @@
     "type": ["database"],
     "entry_point": "gsheet_db::GsheetsDb",
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "gspread", "python-slugify"],
     },
     "configs": {
diff --git a/src/auto_archiver/modules/gsheet_feeder/__manifest__.py b/src/auto_archiver/modules/gsheet_feeder/__manifest__.py
index 3d9cb08..1c9acab 100644
--- a/src/auto_archiver/modules/gsheet_feeder/__manifest__.py
+++ b/src/auto_archiver/modules/gsheet_feeder/__manifest__.py
@@ -3,7 +3,7 @@
     "type": ["feeder"],
     "entry_point": "gsheet_feeder::GsheetsFeeder",
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "gspread", "python-slugify"],
     },
     "configs": {
diff --git a/src/auto_archiver/modules/hash_enricher/__manifest__.py b/src/auto_archiver/modules/hash_enricher/__manifest__.py
index f306808..c7a023e 100644
--- a/src/auto_archiver/modules/hash_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/hash_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Hash Enricher",
     "type": ["enricher"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
                           "python": ["loguru"],
     },
     "configs": {
diff --git a/src/auto_archiver/modules/html_formatter/__manifest__.py b/src/auto_archiver/modules/html_formatter/__manifest__.py
index 259a3d1..ec19cf8 100644
--- a/src/auto_archiver/modules/html_formatter/__manifest__.py
+++ b/src/auto_archiver/modules/html_formatter/__manifest__.py
@@ -2,8 +2,8 @@
     "name": "HTML Formatter",
     "type": ["formatter"],
     "requires_setup": False,
-    "external_dependencies": {
-                          "python": ["loguru", "jinja2"],
+    "dependencies": {
+                          "python": ["hash_enricher", "loguru", "jinja2"],
                           "bin": [""]
     },
     "configs": {
diff --git a/src/auto_archiver/modules/html_formatter/html_formatter.py b/src/auto_archiver/modules/html_formatter/html_formatter.py
index 570fc6f..8f006e0 100644
--- a/src/auto_archiver/modules/html_formatter/html_formatter.py
+++ b/src/auto_archiver/modules/html_formatter/html_formatter.py
@@ -53,6 +53,7 @@ class HtmlFormatter(Formatter):
             outf.write(content)
         final_media = Media(filename=html_path, _mimetype="text/html")
 
+        # get the already instantiated hash_enricher module
         he = get_module('hash_enricher', self.config)
         if len(hd := he.calculate_hash(final_media.filename)):
             final_media.set("hash", f"{he.algorithm}:{hd}")
diff --git a/src/auto_archiver/modules/instagram_api_extractor/__manifest__.py b/src/auto_archiver/modules/instagram_api_extractor/__manifest__.py
index cdaf635..57f378e 100644
--- a/src/auto_archiver/modules/instagram_api_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/instagram_api_extractor/__manifest__.py
@@ -1,7 +1,7 @@
 {
     "name": "Instagram API Extractor",
     "type": ["extractor"],
-    "external_dependencies":
+    "dependencies":
         {"python": ["requests",
                     "loguru",
                     "retrying",
diff --git a/src/auto_archiver/modules/instagram_extractor/__manifest__.py b/src/auto_archiver/modules/instagram_extractor/__manifest__.py
index f1857c2..6e7518e 100644
--- a/src/auto_archiver/modules/instagram_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/instagram_extractor/__manifest__.py
@@ -1,7 +1,7 @@
 {
     "name": "Instagram Extractor",
     "type": ["extractor"],
-    "external_dependencies": {
+    "dependencies": {
         "python": [
             "instaloader",
             "loguru",
diff --git a/src/auto_archiver/modules/instagram_tbot_extractor/__manifest__.py b/src/auto_archiver/modules/instagram_tbot_extractor/__manifest__.py
index 95d6808..8a1f74f 100644
--- a/src/auto_archiver/modules/instagram_tbot_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/instagram_tbot_extractor/__manifest__.py
@@ -1,7 +1,7 @@
 {
     "name": "Instagram Telegram Bot Extractor",
     "type": ["extractor"],
-    "external_dependencies": {"python": ["loguru",
+    "dependencies": {"python": ["loguru",
                                          "telethon",],
                               },
     "requires_setup": True,
diff --git a/src/auto_archiver/modules/local_storage/__manifest__.py b/src/auto_archiver/modules/local_storage/__manifest__.py
index ce00953..6d9cf53 100644
--- a/src/auto_archiver/modules/local_storage/__manifest__.py
+++ b/src/auto_archiver/modules/local_storage/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Local Storage",
     "type": ["storage"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru"],
     },
     "configs": {
diff --git a/src/auto_archiver/modules/meta_enricher/__manifest__.py b/src/auto_archiver/modules/meta_enricher/__manifest__.py
index 10acf71..37c9201 100644
--- a/src/auto_archiver/modules/meta_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/meta_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Archive Metadata Enricher",
     "type": ["enricher"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
                           "python": ["loguru"],
     },
     "description": """ 
diff --git a/src/auto_archiver/modules/metadata_enricher/__manifest__.py b/src/auto_archiver/modules/metadata_enricher/__manifest__.py
index 50064e9..f8ccdc6 100644
--- a/src/auto_archiver/modules/metadata_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/metadata_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Media Metadata Enricher",
     "type": ["enricher"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru"], 
         "bin": ["exiftool"]
     },
diff --git a/src/auto_archiver/modules/mute_formatter/__manifest__.py b/src/auto_archiver/modules/mute_formatter/__manifest__.py
index 77f2784..e81dc4c 100644
--- a/src/auto_archiver/modules/mute_formatter/__manifest__.py
+++ b/src/auto_archiver/modules/mute_formatter/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Mute Formatter",
     "type": ["formatter"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
     },
     "description": """ Default formatter.
     """,
diff --git a/src/auto_archiver/modules/pdq_hash_enricher/__manifest__.py b/src/auto_archiver/modules/pdq_hash_enricher/__manifest__.py
index 7b418b1..6353d12 100644
--- a/src/auto_archiver/modules/pdq_hash_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/pdq_hash_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "PDQ Hash Enricher",
     "type": ["enricher"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "pdqhash", "numpy", "Pillow"],
     },
     "description": """
diff --git a/src/auto_archiver/modules/s3_storage/__manifest__.py b/src/auto_archiver/modules/s3_storage/__manifest__.py
index 811c703..16ac7bd 100644
--- a/src/auto_archiver/modules/s3_storage/__manifest__.py
+++ b/src/auto_archiver/modules/s3_storage/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "S3 Storage",
     "type": ["storage"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["boto3", "loguru"],
     },
     "configs": {
diff --git a/src/auto_archiver/modules/screenshot_enricher/__manifest__.py b/src/auto_archiver/modules/screenshot_enricher/__manifest__.py
index c1a30e7..52842c9 100644
--- a/src/auto_archiver/modules/screenshot_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/screenshot_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Screenshot Enricher",
     "type": ["enricher"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "selenium"],
         "bin": ["chromedriver"]
     },
diff --git a/src/auto_archiver/modules/ssl_enricher/__manifest__.py b/src/auto_archiver/modules/ssl_enricher/__manifest__.py
index ccde957..0fb7cd9 100644
--- a/src/auto_archiver/modules/ssl_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/ssl_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "SSL Certificate Enricher",
     "type": ["enricher"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "python-slugify"],
     },
     'entry_point': 'ssl_enricher::SSLEnricher',
diff --git a/src/auto_archiver/modules/telegram_extractor/__manifest__.py b/src/auto_archiver/modules/telegram_extractor/__manifest__.py
index 86b5e0f..e1c49c2 100644
--- a/src/auto_archiver/modules/telegram_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/telegram_extractor/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Telegram Extractor",
     "type": ["extractor"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": [
             "requests",
             "bs4",
diff --git a/src/auto_archiver/modules/telethon_extractor/__manifest__.py b/src/auto_archiver/modules/telethon_extractor/__manifest__.py
index 2cf1e42..6b37654 100644
--- a/src/auto_archiver/modules/telethon_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/telethon_extractor/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "telethon_extractor",
     "type": ["extractor"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["telethon",
                    "loguru",
                    "tqdm",
diff --git a/src/auto_archiver/modules/thumbnail_enricher/__manifest__.py b/src/auto_archiver/modules/thumbnail_enricher/__manifest__.py
index 2b0f167..bd7836d 100644
--- a/src/auto_archiver/modules/thumbnail_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/thumbnail_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Thumbnail Enricher",
     "type": ["enricher"],
     "requires_setup": False,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "ffmpeg-python"],
         "bin": ["ffmpeg"]
     },
diff --git a/src/auto_archiver/modules/timestamping_enricher/__manifest__.py b/src/auto_archiver/modules/timestamping_enricher/__manifest__.py
index 496d211..6ad9c57 100644
--- a/src/auto_archiver/modules/timestamping_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/timestamping_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Timestamping Enricher",
     "type": ["enricher"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": [
             "loguru",
             "slugify",
diff --git a/src/auto_archiver/modules/twitter_api_extractor/__manifest__.py b/src/auto_archiver/modules/twitter_api_extractor/__manifest__.py
index 02d0d6c..05d1ac0 100644
--- a/src/auto_archiver/modules/twitter_api_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/twitter_api_extractor/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Twitter API Extractor",
     "type": ["extractor"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["requests",
                    "loguru",
                    "pytwitter",
diff --git a/src/auto_archiver/modules/vk_extractor/__manifest__.py b/src/auto_archiver/modules/vk_extractor/__manifest__.py
index bdcaf99..116b430 100644
--- a/src/auto_archiver/modules/vk_extractor/__manifest__.py
+++ b/src/auto_archiver/modules/vk_extractor/__manifest__.py
@@ -3,7 +3,7 @@
     "type": ["extractor"],
     "requires_setup": True,
     "depends": ["core", "utils"],
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru",
                    "vk_url_scraper"],
     },
diff --git a/src/auto_archiver/modules/wacz_enricher/__manifest__.py b/src/auto_archiver/modules/wacz_enricher/__manifest__.py
index 07983d9..bb9d290 100644
--- a/src/auto_archiver/modules/wacz_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/wacz_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "WACZ Enricher",
     "type": ["enricher", "archiver"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": [
             "loguru",
             "jsonlines",
diff --git a/src/auto_archiver/modules/wayback_enricher/__manifest__.py b/src/auto_archiver/modules/wayback_enricher/__manifest__.py
index bff10af..5d1fe25 100644
--- a/src/auto_archiver/modules/wayback_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/wayback_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Wayback Machine Enricher",
     "type": ["enricher", "archiver"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "requests"],
     },
     "entry_point": "wayback_enricher::WaybackExtractorEnricher",
diff --git a/src/auto_archiver/modules/whisper_enricher/__manifest__.py b/src/auto_archiver/modules/whisper_enricher/__manifest__.py
index 25eae25..0adf9ff 100644
--- a/src/auto_archiver/modules/whisper_enricher/__manifest__.py
+++ b/src/auto_archiver/modules/whisper_enricher/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Whisper Enricher",
     "type": ["enricher"],
     "requires_setup": True,
-    "external_dependencies": {
+    "dependencies": {
         "python": ["loguru", "requests"],
     },
     "configs": {
diff --git a/tests/data/example_module/__manifest__.py b/tests/data/example_module/__manifest__.py
index ca3a678..19a85f9 100644
--- a/tests/data/example_module/__manifest__.py
+++ b/tests/data/example_module/__manifest__.py
@@ -2,7 +2,7 @@
     "name": "Example Module",
     "type": ["extractor"],
     "requires_setup": False,
-    "external_dependencies": {"python": ["loguru"]
+    "dependencies": {"python": ["loguru"]
                               },
     "configs": {
             "csv_file": {"default": "db.csv", "help": "CSV file name"}
diff --git a/tests/data/example_module/example_module.py b/tests/data/example_module/example_module.py
index b752743..bce8ba4 100644
--- a/tests/data/example_module/example_module.py
+++ b/tests/data/example_module/example_module.py
@@ -1,4 +1,4 @@
 from auto_archiver.core.extractor import Extractor
-
 class ExampleModule(Extractor):
-    pass
\ No newline at end of file
+    def download(self, item):
+        print("do something")
\ No newline at end of file
diff --git a/tests/test_modules.py b/tests/test_modules.py
index 109bc52..decc616 100644
--- a/tests/test_modules.py
+++ b/tests/test_modules.py
@@ -1,13 +1,24 @@
 import sys
 import pytest
 from auto_archiver.core.module import get_module_lazy, BaseModule, LazyBaseModule, _LAZY_LOADED_MODULES
-from auto_archiver.core.extractor import Extractor
 
 @pytest.fixture
 def example_module():
-    yield get_module_lazy("example_module", ["tests/data/"])
+    import auto_archiver
+
+    previous_path = auto_archiver.modules.__path__
+    auto_archiver.modules.__path__.append("tests/data/")
+
+    module = get_module_lazy("example_module")
+    yield module
     # cleanup
-    _LAZY_LOADED_MODULES.pop("example_module")
+    try:
+        del module._manifest
+    except AttributeError:
+        pass
+    del _LAZY_LOADED_MODULES["example_module"]
+    sys.modules.pop("auto_archiver.modules.example_module.example_module", None)
+    auto_archiver.modules.__path__ = previous_path
 
 def test_get_module_lazy(example_module):
     assert example_module.name == "example_module"
@@ -15,18 +26,34 @@ def test_get_module_lazy(example_module):
 
     assert example_module.manifest is not None
 
+def test_python_dependency_check(example_module):
+    # example_module requires loguru, which is not installed
+    # monkey patch the manifest to include a nonexistnet dependency
+    example_module.manifest["dependencies"]["python"] = ["does_not_exist"]
 
-def test_load_module_abc_check(example_module):
-
-    # example_module is an extractor but doesn't have the 'download' method, should raise an ABC error
-    with pytest.raises(TypeError) as load_error:
+    with pytest.raises(SystemExit) as load_error:
         example_module.load({})
-    assert "Can't instantiate abstract class ExampleModule with abstract method download" in str(load_error.value)
 
-    
-def test_load_module(example_module, monkeypatch):
-    # hack - remove the 'download' method from the required methods of Extractor
-    monkeypatch.setattr(Extractor, "__abstractmethods__", set())
+    assert load_error.value.code == 1
+
+def test_binary_dependency_check(example_module):
+    # example_module requires ffmpeg, which is not installed
+    # monkey patch the manifest to include a nonexistnet dependency
+    example_module.manifest["dependencies"]["binary"] = ["does_not_exist"]
+
+def test_module_dependency_check_loads_module(example_module):
+    # example_module requires cli_feeder, which is not installed
+    # monkey patch the manifest to include a nonexistnet dependency
+    example_module.manifest["dependencies"]["python"] = ["hash_enricher"]
+
+    loaded_module = example_module.load({})
+    assert loaded_module is not None
+
+    # check the dependency is loaded
+    assert _LAZY_LOADED_MODULES["hash_enricher"] is not None
+    assert _LAZY_LOADED_MODULES["hash_enricher"]._instance is not None
+
+def test_load_module(example_module):
 
     # setup the module, and check that config is set to the default values
     loaded_module = example_module.load({})