diff --git a/pydatastructs/trees/binary_trees.py b/pydatastructs/trees/binary_trees.py
index 4dc1fc3c8..48446d1d4 100644
--- a/pydatastructs/trees/binary_trees.py
+++ b/pydatastructs/trees/binary_trees.py
@@ -4,8 +4,7 @@
 from pydatastructs.miscellaneous_data_structures import Stack
 from pydatastructs.linear_data_structures import OneDimensionalArray
 from pydatastructs.linear_data_structures.arrays import ArrayForTrees
-from pydatastructs.utils.misc_util import (
-    Backend, raise_if_backend_is_not_python)
+from pydatastructs.utils.misc_util import Backend
 from pydatastructs.trees._backend.cpp import _trees
 
 __all__ = [
diff --git a/pydatastructs/utils/testing_util.py b/pydatastructs/utils/testing_util.py
index 6024912ba..e5c0627b5 100644
--- a/pydatastructs/utils/testing_util.py
+++ b/pydatastructs/utils/testing_util.py
@@ -1,9 +1,3 @@
-try:
-    import pytest
-except ImportError:
-    raise Exception("pytest must be installed. Use `pip install pytest` "
-                    "to install it.")
-
 import os
 import pathlib
 import glob
@@ -30,6 +24,12 @@ def test(submodules=None, only_benchmarks=False,
         List of submodules test to run. By default runs
         all the tests
     """
+    try:
+        import pytest
+    except ImportError:
+        raise Exception("pytest must be installed. Use `pip install pytest` "
+                        "to install it.")
+
     # set benchmarks size
     os.environ["PYDATASTRUCTS_BENCHMARK_SIZE"] = str(benchmarks_size)
     test_files = []
@@ -53,7 +53,7 @@ def test(submodules=None, only_benchmarks=False,
                     raise Exception("Submodule should be of type: str or module")
                 if sub in path:
                     if not only_benchmarks:
-                        if not 'benchmarks' in path:
+                        if 'benchmarks' not in path:
                             test_files.append(path)
                     else:
                         if 'benchmarks' in path:
@@ -69,14 +69,14 @@ def test(submodules=None, only_benchmarks=False,
             if skip_test:
                 continue
             if not only_benchmarks:
-                if not 'benchmarks' in path:
+                if 'benchmarks' not in path:
                     test_files.append(path)
             else:
                 if 'benchmarks' in path:
                     test_files.append(path)
 
     extra_args = []
-    if not kwargs.get("n", False) is False:
+    if kwargs.get("n", False) is not False:
         extra_args.append("-n")
         extra_args.append(str(kwargs["n"]))
 
diff --git a/scripts/build/develop.py b/scripts/build/develop.py
index 75665829b..86d4027a7 100644
--- a/scripts/build/develop.py
+++ b/scripts/build/develop.py
@@ -1,17 +1,28 @@
-import os, argparse
+import argparse
+import subprocess
+import sys
 
-parser = argparse.ArgumentParser(description='Process build options.')
-parser.add_argument('--clean', type=bool, default=False,
-                    help='Execute `git clean -fdx` (default 0)')
+def run_cmd(cmd):
+    print(f"Running: {cmd}")
+    result = subprocess.run(cmd, shell=True)
+    if result.returncode != 0:
+        print(f"Command failed: {cmd}", file=sys.stderr)
+        sys.exit(result.returncode)
 
-build_options = parser.parse_args()
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='Process build options.')
+    parser.add_argument('--clean', action='store_true',
+                        help='Execute `git clean -fdx`')
+    args = parser.parse_args()
 
-if build_options.clean:
-    response = input("Warning: Executing `git clean -fdx` [Y/N]: ")
-    if response.lower() in ("y", "yes"):
-        os.system("git clean -fdx")
+    if args.clean:
+        response = input("Warning: Executing `git clean -fdx` [Y/N]: ")
+        if response.lower() in ("y", "yes"):
+            run_cmd("git clean -fdx")
+        else:
+            print("Skipping clean step.")
 
-os.system("python scripts/build/add_dummy_submodules.py")
-os.system("pip install -e . --verbose")
-os.system("python scripts/build/delete_dummy_submodules.py")
-os.system("pip install -e . --verbose --force-reinstall")
+    run_cmd("python scripts/build/add_dummy_submodules.py")
+    run_cmd("pip install -e . --verbose")
+    run_cmd("python scripts/build/delete_dummy_submodules.py")
+    run_cmd("pip install -e . --verbose --force-reinstall")
diff --git a/scripts/build/install.py b/scripts/build/install.py
index a96c03824..90a7ee48d 100644
--- a/scripts/build/install.py
+++ b/scripts/build/install.py
@@ -1,18 +1,29 @@
-import os, argparse
+import os
+import argparse
+import subprocess
+import sys
 
-parser = argparse.ArgumentParser(description='Process build options.')
-parser.add_argument('--clean', type=bool, default=False,
-                    help='Execute `git clean -fdx` (default 0)')
+def run_cmd(cmd):
+    print(f"Running: {cmd}")
+    result = subprocess.run(cmd, shell=True)
+    if result.returncode != 0:
+        print(f"Command failed: {cmd}", file=sys.stderr)
+        sys.exit(result.returncode)
 
-build_options = parser.parse_args()
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Build and install pydatastructs.")
+    parser.add_argument("--clean", action="store_true", help="Execute `git clean -fdx`")
+    args = parser.parse_args()
 
-if build_options.clean:
-    response = input("Warning: Executing `git clean -fdx` [Y/N]: ")
-    if response.lower() in ("y", "yes"):
-        os.system("git clean -fdx")
+    if args.clean:
+        response = input("Warning: Executing `git clean -fdx` [Y/N]: ")
+        if response.lower() in ("y", "yes"):
+            run_cmd("git clean -fdx")
+        else:
+            print("Skipping clean step.")
 
-os.system("python scripts/build/add_dummy_submodules.py")
-os.system("python setup.py build_ext --inplace")
-os.system("pip install .")
-os.system("python scripts/build/delete_dummy_submodules.py")
-os.system("pip install . --force-reinstall")
+    run_cmd("python scripts/build/add_dummy_submodules.py")
+    run_cmd("python setup.py build_ext --inplace")
+    run_cmd("python -m pip install .")
+    run_cmd("python scripts/build/delete_dummy_submodules.py")
+    run_cmd("python -m pip install . --force-reinstall")