diff --git a/power_sequencer/operators/__init__.py b/power_sequencer/operators/__init__.py
index 535b29cd4f4f41ce55c8f95655da295d0510573d..65f84902f4ab5d9fffd344aa14937b7b201f6a19 100755
--- a/power_sequencer/operators/__init__.py
+++ b/power_sequencer/operators/__init__.py
@@ -28,7 +28,7 @@ def get_operator_classes():
     classes = []
     print(__name__)
     for path in module_paths:
-        module = importlib.import_module(path, package="blender_power_sequencer.operators")
+        module = importlib.import_module(path, package="power_sequencer.operators")
         operator_names = [entry for entry in dir(module) if entry.startswith("POWER_SEQUENCER_OT")]
         classes.extend([getattr(module, name) for name in operator_names])
     return classes
diff --git a/power_sequencer/operators/audiosync/mfcc/mfcc.py b/power_sequencer/operators/audiosync/mfcc/mfcc.py
index 7f90a5b17cb772c26f5a119a71603847dab3dee7..d63c3e33c3d55f02a3ce29620dfd21e23038ccd5 100644
--- a/power_sequencer/operators/audiosync/mfcc/mfcc.py
+++ b/power_sequencer/operators/audiosync/mfcc/mfcc.py
@@ -16,10 +16,6 @@
 #
 import numpy as np
 
-from scipy.signal import hamming, lfilter
-from scipy.fftpack import fft
-from scipy.fftpack.realtransforms import dct
-
 from .trfbank import trfbank
 from .segment_axis import segment_axis
 
@@ -56,6 +52,10 @@ def mfcc(input, nwin=256, nfft=512, fs=16000, nceps=13):
            spoken sentences", IEEE Trans. Acoustics. Speech, Signal Proc.
            ASSP-28 (4): 357-366, August 1980."""
 
+    from scipy.signal import hamming, lfilter
+    from scipy.fftpack import fft
+    from scipy.fftpack.realtransforms import dct
+
     # MFCC parameters: taken from auditory toolbox
     over = nwin - 160
     # Pre-emphasis factor (to take into account the -6dB/octave rolloff of the
diff --git a/power_sequencer/scripts/BPSProxy/setup.py b/power_sequencer/scripts/BPSProxy/setup.py
index 996ba3dbe224ed12c1ef0609c485096d3ea303f3..2581fe63d2517dbbe5e88649f4645c990e370457 100644
--- a/power_sequencer/scripts/BPSProxy/setup.py
+++ b/power_sequencer/scripts/BPSProxy/setup.py
@@ -14,8 +14,6 @@
 # You should have received a copy of the GNU General Public License along with Power Sequencer. If
 # not, see <https://www.gnu.org/licenses/>.
 #
-from setuptools import setup
-
 
 def readme():
     with open("README.md") as f:
@@ -23,6 +21,8 @@ def readme():
 
 
 if __name__ == "__main__":
+    from setuptools import setup
+
     setup(
         name="bpsproxy",
         version="0.2.0",
diff --git a/power_sequencer/scripts/BPSRender/setup.py b/power_sequencer/scripts/BPSRender/setup.py
index 1f17b9bae1483688749eb952e52612c121a422ec..3d829d64261999fa354748c258eccfcd1523804d 100644
--- a/power_sequencer/scripts/BPSRender/setup.py
+++ b/power_sequencer/scripts/BPSRender/setup.py
@@ -14,8 +14,6 @@
 # You should have received a copy of the GNU General Public License along with Power Sequencer. If
 # not, see <https://www.gnu.org/licenses/>.
 #
-from setuptools import setup
-
 
 def readme():
     with open("README.rst") as f:
@@ -23,6 +21,8 @@ def readme():
 
 
 if __name__ == "__main__":
+    from setuptools import setup
+
     setup(
         name="bpsrender",
         version="0.1.40.post1",
diff --git a/power_sequencer/tools/__init__.py b/power_sequencer/tools/__init__.py
index 4c0e75ca3f9598ad84f0849a3ee79746748d2edf..463c3762ee38ff4eedbd36e289924ba47aa0b327 100644
--- a/power_sequencer/tools/__init__.py
+++ b/power_sequencer/tools/__init__.py
@@ -27,7 +27,7 @@ def get_tool_classes():
     module_paths = ["." + os.path.splitext(f)[0] for f in module_files]
     classes = []
     for path in module_paths:
-        module = importlib.import_module(path, package="blender_power_sequencer.tools")
+        module = importlib.import_module(path, package="power_sequencer.tools")
         tool_names = [entry for entry in dir(module) if entry.startswith("POWER_SEQUENCER_TOOL")]
         classes.extend([getattr(module, name) for name in tool_names])
     return classes