cannot install taichi>=1.2.0

[kaixin-bai]

~/MyProjects/taichi-ngp-renderer$ python3 -m pip install -r requirement.txt
ERROR: Could not find a version that satisfies the requirement taichi>=1.2.0 (from versions: 0.7.13, 0.7.14, 0.7.15, 0.7.16, 0.7.17, 0.7.18, 0.7.19, 0.7.20, 0.7.21, 0.7.22, 0.7.23, 0.7.24, 0.7.25, 0.7.26, 0.7.28, 0.7.29, 0.7.30, 0.7.31, 0.7.32, 0.8.0, 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5, 0.8.6, 0.8.7, 0.8.8, 0.8.9, 0.8.10, 0.8.11, 0.9.0, 0.9.1, 0.9.2, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4)
ERROR: No matching distribution found for taichi>=1.2.0

My python version is 3.6.13

My pip version is 21.0.1

[kaixin-bai]

Problem solved by using python3.9, i find that this project uses "shared_memory" in multiprocessing, so python version should at least >= 3.8