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-rw-r--r--coin_build_instructions.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/coin_build_instructions.py b/coin_build_instructions.py
index 8df12ee4c..325b02dec 100644
--- a/coin_build_instructions.py
+++ b/coin_build_instructions.py
@@ -110,7 +110,12 @@ def call_setup(python_ver, phase):
if phase in ["BUILD"]:
rmtree(_env, True)
run_instruction(["virtualenv", "-p", _pExe, _env], "Failed to create virtualenv")
- install_pip_dependencies(env_pip, ["pip", "numpy", "setuptools", "sphinx", "six", "wheel"])
+ # When the 'python_ver' variable is empty, we are using Python 2
+ # setuptools from v45+ removed the support for Python 2, so we pin an old release
+ install_pip_dependencies(env_pip, ["pip",
+ "numpy" if python_ver else "numpy==1.16.6",
+ "setuptools" if python_ver else "setuptools==44.0.0",
+ "sphinx", "six", "wheel"])
cmd = [env_python, "-u", "setup.py"]
if phase in ["BUILD"]: