[misc] don't use py"..." for julia: avoid eval/exec

Author: digikar99

perf-compare/README.org

@@ -194,6 +194,6 @@ Table summarizing number of calls per second that the particular library can rea
 |--------------------+---------------+--------------|
 | Python             |       1000000 |      1600000 |
 | burgled-batteries3 |         16500 |            - |
-| PyCall.jl          |         20000 |       240000 |
+| PyCall.jl          |        320000 |       500000 |
 | py4cl2-cffi        |         55000 |       210000 |
 | py4cl              |          4000 |            - |

perf-compare/run-pycall.jl

@@ -19,13 +19,13 @@ function pystr_i(i)
 end
 
 function pycall_str(i)
-    return py"str"(PyObject(i))
+    return pycall(pybuiltin("str"), String, i)
 end
 
 calls_per_second(1, pystr_i)
-print("Evaluating performance of pystr_i through 100000 calls...\n")
-print("Calls per second: ", calls_per_second(100000, pystr_i), "\n\n")
+print("Evaluating performance of pystr_i through 1000000 calls...\n")
+print("Calls per second: ", calls_per_second(1000000, pystr_i), "\n\n")
 
 calls_per_second(1, pycall_str)
-print("Evaluating performance of pycall_str through 10000 calls...\n")
-print("Calls per second: ", calls_per_second(10000, pycall_str), "\n")
+print("Evaluating performance of pycall_str through 1000000 calls...\n")
+print("Calls per second: ", calls_per_second(1000000, pycall_str), "\n")