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Allow existing and strict for the JuliaCall compiled_modules option #848

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Merged
cjdoris merged 1 commit into from
Nov 6, 2026
Merged

Allow existing and strict for the JuliaCall compiled_modules option #848

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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -4,6 +4,7 @@
* Add `exe=@ENV` preference to read `JULIA_PYTHONCALL_EXE` without loading CondaPkg.
* Improved TTFX in JuliaCall.
* Minimum supported Python version is now 3.11.
* JuliaCall option `compiled_modules` now accepts `existing` and `strict` (Julia 1.11+).

## 0.9.37 (2026-10-12)
* Compatibility fix with Python 3.15 from conda-forge, which no longer bundles libpython.
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2 changes: 1 addition & 1 deletion docs/src/juliacall.md
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Expand Up @@ -127,7 +127,7 @@ be configured in two ways:
| `-X juliacall-home=<dir>` | `PYTHON_JULIACALL_BINDIR=<dir>` | The directory containing the julia executable. |
| `-X juliacall-check-bounds=<yes\|no\|auto>` | `PYTHON_JULIACALL_CHECK_BOUNDS=<yes\|no\|auto>` | Enable or disable bounds checking. |
| `-X juliacall-compile=<yes\|no\|all\|min>` | `PYTHON_JULIACALL_COMPILE=<yes\|no\|all\|min>` | Enable or disable JIT compilation. |
| `-X juliacall-compiled-modules=<yes\|no>` | `PYTHON_JULIACALL_COMPILED_MODULES=<yes\|no>` | Enable or disable incrementally compiling modules. |
| `-X juliacall-compiled-modules=<yes\|no\|existing\|strict>` | `PYTHON_JULIACALL_COMPILED_MODULES=<yes\|no\|existing\|strict>` | Enable or disable incrementally compiling modules (`existing`, `strict`: Julia 1.11+). |
| `-X juliacall-depwarn=<yes\|no\|error>` | `PYTHON_JULIACALL_DEPWARN=<yes\|no\|error>` | Enable or disable deprecation warnings. |
| `-X juliacall-handle-signals=<yes\|no>` | `PYTHON_JULIACALL_HANDLE_SIGNALS=<yes\|no>` | Enable or disable Julia signal handling. |
| `-X juliacall-inline=<yes\|no>` | `PYTHON_JULIACALL_INLINE=<yes\|no>` | Enable or disable inlining. |
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2 changes: 1 addition & 1 deletion pysrc/juliacall/__init__.py
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Expand Up @@ -195,7 +195,7 @@ def args_from_config(config):
CONFIG['opt_compile'] = choice('compile', ['yes', 'no', 'all', 'min'])[0]
CONFIG["opt_trace_compile"] = option('trace_compile')[0]
CONFIG["opt_trace_compile_timing"] = flag('trace_compile_timing')[0]
CONFIG['opt_compiled_modules'] = choice('compiled_modules', ['yes', 'no'])[0]
CONFIG['opt_compiled_modules'] = choice('compiled_modules', ['yes', 'no', 'existing', 'strict'])[0]
CONFIG['opt_depwarn'] = choice('depwarn', ['yes', 'no', 'error'])[0]
CONFIG['opt_inline'] = choice('inline', ['yes', 'no'])[0]
CONFIG['opt_min_optlevel'] = choice('min_optlevel', ['0', '1', '2', '3'])[0]
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30 changes: 30 additions & 0 deletions pytest/test_all.py
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Expand Up @@ -199,3 +199,33 @@ def test_call_nogil(yld, raw):
t2 = time() - t0
# executing the tasks should take about 1 second because they happen in parallel
assert 0.9 < t2 < 1.5


@pytest.mark.parametrize("mode,value", [("existing", 2), ("strict", 3)])
def test_compiled_modules_option(mode, value):
import os
import subprocess
import sys

from juliacall import Main as jl

if jl.seval("VERSION < v\"1.11\""):
pytest.skip("--compiled-modules=existing/strict requires Julia 1.11")
# the parent process has loaded PythonCall, so its cache files exist for the
# same flags (the child inherits PYTHON_JULIACALL_*) and it can load them without compiling
env = os.environ.copy()
env["PYTHON_JULIACALL_COMPILED_MODULES"] = mode
result = subprocess.run(
[
sys.executable,
"-c",
"from juliacall import Main as jl;"
" print(jl.seval('Base.JLOptions().use_compiled_modules'), end='')",
],
env=env,
capture_output=True,
text=True,
timeout=180,
)
assert result.returncode == 0, result.stderr
assert result.stdout == str(value)
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