Hi All, Did any one faced same issue earlier? Can you please suggest a way to build python package for edk2 basetolls. I am working a small application which I can use to read the capsule file data using python package. Below is the sample code which I want to use: import efilib import struct def dump_hii_knobs(capsule_path): with open(capsule_path, 'rb') as f: data = f.read() image = efilib.FirmwareVolume(data) hii_handles = [] for section in image.get_sections(): if section.type == efilib.SECTION_GUID_DEFINED: if section.guid == efilib.HII_DATABASE_GUID: hii_handles.append(struct.unpack(" for help, attaching following call stack trace!) (Python 3.9.16 on linux) Traceback (most recent call last): File "/root/edk2-basetools/edk2-basetools/edk2basetools/build/build.py", line 2648, in Main CheckEnvVariable() File "/root/edk2-basetools/edk2-basetools/edk2basetools/build/build.py", line 127, in CheckEnvVariable os.environ["EDK_TOOLS_PATH"] = os.path.normcase(os.environ["EDK_TOOLS_PATH"]) File "/usr/lib64/python3.9/os.py", line 679, in __getitem__ raise KeyError(key) from None KeyError: 'EDK_TOOLS_PATH' - Failed - Build end time: 15:08:33, Mar.07 2023 Build total time: 00:00:00 [root@master-node edk2basetools]# Thanks for looking into it. Regards, Vikas