Statistics on the Python C API¶
Functions¶
Functions exported with PyAPI_FUNC():
Python |
Public |
Private |
Internal |
Total |
|---|---|---|---|---|
2.7.0 |
738 |
159 |
0 |
897 |
3.6.0 |
844 (+106) |
382 (+223) |
0 (same) |
1,226 (+329) |
3.7.0 |
869 (+25) |
450 (+68) |
16 (+16) |
1,335 (+109) |
3.8.0 |
909 (+40) |
429 (-21) |
83 (+67) |
1,421 (+86) |
3.9.0 |
919 (+10) |
412 (-17) |
114 (+31) |
1,445 (+24) |
3.10.0 |
885 (-34) |
412 (same) |
120 (+6) |
1,417 (-28) |
3.11.0 |
891 (+6) |
360 (-52) |
181 (+61) |
1,432 (+15) |
3.12.0 |
929 (+38) |
389 (+29) |
179 (-2) |
1,497 (+65) |
3.13.0 |
979 (+50) |
126 (-263) |
329 (+150) |
1,434 (-63) |
main (3.14) |
1,032 (+53) |
131 (+5) |
342 (+13) |
1,505 (+71) |
Since Python 3.9, Python is now built with -fvisibility=hidden to avoid
exporting symbols which are not explicitly exported.
The make smelly command checks for public symbols of libpython and C
extension which are prefixed by Py or _Py. See
the Tools/scripts/smelly.py script.
Variables¶
Symbols exported with PyAPI_DATA():
Python |
Public |
Private |
Internal |
Total |
|---|---|---|---|---|
2.7.0 |
129 |
30 |
0 |
159 |
3.6.0 |
167 (+38) |
42 (+12) |
0 (same) |
209 (+50) |
3.7.0 |
170 (+3) |
35 (-7) |
9 (+9) |
214 (+5) |
3.8.0 |
174 (+4) |
37 (+2) |
12 (+3) |
223 (+9) |
3.9.0 |
173 (-1) |
35 (-2) |
14 (+2) |
222 (-1) |
3.10.0 |
173 (same) |
33 (-2) |
13 (-1) |
219 (-3) |
3.11.0 |
177 (+4) |
32 (-1) |
10 (-3) |
219 (same) |
3.12.0 |
176 (-1) |
30 (-2) |
11 (+1) |
217 (-2) |
3.13.0 |
180 (+4) |
14 (-16) |
25 (+14) |
219 (+2) |
main (3.14) |
180 (same) |
14 (same) |
28 (+3) |
222 (+3) |
Line Numbers¶
Number of C API line numbers per Python version:
Python |
Limited API |
CPython API |
Internal API |
Total |
|---|---|---|---|---|
2.7.0 |
12,392 (100%) |
0 (0%) |
0 (0%) |
12,392 |
3.6.0 |
15,330 (100%) |
0 (0%) |
0 (0%) |
15,330 |
3.7.0 |
15,943 (96%) |
0 (0%) |
703 (4%) |
16,646 |
3.8.0 |
12,648 (69%) |
3,418 (19%) |
2,241 (12%) |
18,307 |
3.9.0 |
11,744 (61%) |
4,359 (23%) |
3,118 (16%) |
19,221 |
3.10.0 |
9,909 (49%) |
4,584 (23%) |
5,553 (28%) |
20,046 |
3.11.0 |
8,733 (36%) |
5,407 (22%) |
10,079 (42%) |
24,219 |
3.12.0 |
9,012 (28%) |
5,836 (18%) |
17,650 (54%) |
32,498 |
3.13.0 |
9,107 (21%) |
8,316 (19%) |
26,867 (61%) |
44,290 |
main (3.14) |
9,262 (20%) |
8,506 (18%) |
29,359 (62%) |
47,127 |
File Numbers¶
Number of header file numbers per Python version:
Python |
Limited API |
CPython API |
Internal API |
Total |
|---|---|---|---|---|
2.7.0 |
91 |
0 |
0 |
91 |
3.6.0 |
98 (+7) |
0 (same) |
0 (same) |
98 (+7) |
3.7.0 |
98 (same) |
0 (same) |
12 (+12) |
110 (+12) |
3.8.0 |
96 (-2) |
15 (+15) |
22 (+10) |
133 (+23) |
3.9.0 |
97 (+1) |
24 (+9) |
34 (+12) |
155 (+22) |
3.10.0 |
80 (-17) |
32 (+8) |
49 (+15) |
161 (+6) |
3.11.0 |
71 (-9) |
47 (+15) |
69 (+20) |
187 (+26) |
3.12.0 |
71 (same) |
49 (+2) |
91 (+22) |
211 (+24) |
3.13.0 |
74 (+3) |
57 (+8) |
123 (+32) |
254 (+43) |
main (3.14) |
76 (+2) |
57 (same) |
130 (+7) |
263 (+9) |
Public functions defined as macros and static inline functions¶
Public functions defined as macros and static inline functions:
Python |
Macro |
Static inline |
Total |
|---|---|---|---|
2.7.0 |
274 |
0 |
274 |
3.6.0 |
306 (+32) |
0 (same) |
306 (+32) |
3.7.0 |
315 (+9) |
0 (same) |
315 (+9) |
3.8.0 |
314 (-1) |
0 (same) |
314 (-1) |
3.9.0 |
307 (-7) |
0 (same) |
307 (-7) |
3.10.0 |
307 (same) |
0 (same) |
307 (same) |
3.11.0 |
269 (-38) |
42 (+42) |
311 (+4) |
3.12.0 |
251 (-18) |
64 (+22) |
315 (+4) |
3.13.0 |
249 (-2) |
63 (-1) |
312 (-3) |
main (3.14) |
251 (+2) |
61 (-2) |
312 (same) |
Only count public macros and public static inline functions (names starting with “Py” or “PY”).
Private functions defined as macros and static inline functions¶
Private functions defined as macros and static inline functions:
Python |
Macro |
Static inline |
Total |
|---|---|---|---|
2.7.0 |
21 |
0 |
21 |
3.6.0 |
60 (+39) |
0 (same) |
60 (+39) |
3.7.0 |
70 (+10) |
0 (same) |
70 (+10) |
3.8.0 |
57 (-13) |
7 (+7) |
64 (-6) |
3.9.0 |
43 (-14) |
11 (+4) |
54 (-10) |
3.10.0 |
44 (+1) |
18 (+7) |
62 (+8) |
3.11.0 |
53 (+9) |
4 (-14) |
57 (-5) |
3.12.0 |
62 (+9) |
7 (+3) |
69 (+12) |
3.13.0 |
55 (-7) |
10 (+3) |
65 (-4) |
main (3.14) |
58 (+3) |
10 (same) |
68 (+3) |
Only count private macros and public static inline functions (ignore names starting with “Py” or “PY”).
Structures¶
Structures in the Python C API:
Python |
Limited API |
CPython API |
Internal API |
Total |
|---|---|---|---|---|
2.7.0 |
91 |
0 |
0 |
91 |
3.6.0 |
109 (+18) |
0 (same) |
0 (same) |
109 (+18) |
3.7.0 |
114 (+5) |
0 (same) |
18 (+18) |
132 (+23) |
3.8.0 |
81 (-33) |
34 (+34) |
28 (+10) |
143 (+11) |
3.9.0 |
68 (-13) |
46 (+12) |
38 (+10) |
152 (+9) |
3.10.0 |
41 (-27) |
53 (+7) |
91 (+53) |
185 (+33) |
3.11.0 |
19 (-22) |
75 (+22) |
112 (+21) |
206 (+21) |
3.12.0 |
18 (-1) |
85 (+10) |
170 (+58) |
273 (+67) |
3.13.0 |
16 (-2) |
86 (+1) |
231 (+61) |
333 (+60) |
main (3.14) |
16 (same) |
84 (-2) |
232 (+1) |
332 (-1) |
Count also private structures like “_PyCFrame” and structures with names not starting with Py like “_frozen”.