...

app.py

@@ -74,6 +74,7 @@ def check_and_install_requirements(file_path):
             msg = '\nInstalling missing packages...\n'
             print(msg)
             os.environ['TMPDIR'] = tmp_dir
+            result = subprocess.call([sys.executable, '-m', 'pip', 'cache', 'purge'])
             subprocess.check_call([sys.executable, '-m', 'pip', 'install', '--upgrade', 'pip'])
             with tqdm(total=len(packages), desc='Installation 0.00%', bar_format='{desc}: {n_fmt}/{total_fmt} ', unit='step') as t:
                 for package in tqdm(missing_packages, desc="Installing", unit="pkg"):

ebook2audiobook.cmd

@@ -221,6 +221,7 @@ if "%SCRIPT_MODE%"=="%FULL_DOCKER%" (
 		call conda create --prefix "%SCRIPT_DIR%\%PYTHON_ENV%" python=%PYTHON_VERSION% -y
 		call %CONDA_ENV% activate base
 		call conda activate "%SCRIPT_DIR%\%PYTHON_ENV%"
+		call python -m pip cache purge >nul 2>&1
 		call python -m pip install --upgrade pip
 		for /f "usebackq delims=" %%p in ("requirements.txt") do (
 			echo Installing %%p...

ebook2audiobook.sh

@@ -301,13 +301,13 @@ else
 			conda init > /dev/null 2>&1
 			source $CONDA_ENV
 			conda activate "$SCRIPT_DIR/$PYTHON_ENV"
+			python -m pip cache purge > /dev/null 2>&1
 			python -m pip install --upgrade pip
 			python -m pip install --upgrade --no-cache-dir --use-pep517 --progress-bar=on < requirements.txt
 			tts_version=$(python -c "import importlib.metadata; print(importlib.metadata.version('coqui-tts'))" 2>/dev/null)
 			if [[ -n "$tts_version" ]]; then
 				if [[ "$(printf '%s\n' "$tts_version" "0.26.1" | sort -V | tail -n1)" == "0.26.1" ]]; then
 					python -m pip uninstall transformers
-					python -m pip cache purge
 					python -m install 'transformers<=4.51.3'
 				fi
 			fi

lib/classes/tts_engines/coqui.py

@@ -180,7 +180,6 @@ class Coqui:
                     print(msg)
                     return tts
                 else:
-                    gc.collect()
                     error = 'TTS engine could not be created!'
                     print(error)
         except Exception as e:
@@ -245,7 +244,6 @@ class Coqui:
                 print(msg)
                 return tts
             else:
-                gc.collect()
                 error = 'TTS engine could not be created!'
                 print(error)
         except Exception as e:
@@ -430,10 +428,12 @@ class Coqui:
             if tts_key is not None:
                 if tts_key in loaded_tts.keys():
                     del loaded_tts[tts_key]
+                    gc.collect()
             else:
                 for key in list(loaded_tts.keys()):
                     if key != self.tts_vc_key and key != self.tts_key:
                         del loaded_tts[key]
+                        gc.collect()
                 if device != 'cpu':
                     torch.cuda.empty_cache()
                     torch.cuda.synchronize()