Replace custom locking mechanism with filelock

bin/theano_cache.py

@@ -87,7 +87,7 @@ def main():
             cache = get_module_cache(init_args=dict(do_refresh=False))
             cache.clear_old()
         elif sys.argv[1] == "unlock":
-            theano.compile.compilelock.force_unlock()
+            theano.compile.compilelock.force_unlock(config.compiledir)
             print("Lock successfully removed!")
         elif sys.argv[1] == "purge":
             theano.compile.compiledir.compiledir_purge()

requirements.txt

 -e ./
+filelock
 flake8==3.8.4
 pep8
 pyflakes

setup.py

@@ -57,7 +57,7 @@ if __name__ == "__main__":
         license=LICENSE,
         platforms=PLATFORMS,
         packages=find_packages(exclude=["tests.*"]),
-        install_requires=["numpy>=1.9.1", "scipy>=0.14"],
+        install_requires=["numpy>=1.9.1", "scipy>=0.14", "filelock"],
         package_data={
             "": [
                 "*.txt",