0.6:

- Fixed an issue where the line numbers for error messages were not correct

readme.md

@@ -36,6 +36,9 @@ This code will be executed
 ```
 
 # Changelog
+#### 0.6 (04.04.2022)
+- Fixed an issue where the line numbers for error messages were not correct
+
 #### 0.5 (10.03.2022)
 - Marked as safe for parallel reading
 

src/sphinx_exec_code/__version__.py

@@ -1 +1 @@
-__version__ = '0.5'
+__version__ = '0.6'

src/sphinx_exec_code/code_exec.py

@@ -18,7 +18,7 @@ def setup_code_env(cwd: Path, folders: Iterable[Path]):
     ADDITIONAL_FOLDERS = tuple(map(str, folders))
 
 
-def execute_code(code: str, file: str, line: int) -> str:
+def execute_code(code: str, file: Path, first_loc: int) -> str:
     if WORKING_DIR is None or ADDITIONAL_FOLDERS is None:
         raise ConfigError('Working dir or additional folders are not set!')
 
@@ -30,7 +30,7 @@ def execute_code(code: str, file: str, line: int) -> str:
 
     run = subprocess.run([sys.executable, '-c', code], capture_output=True, cwd=WORKING_DIR, env=env)
     if run.returncode != 0:
-        raise CodeException(code, (file, line), run.returncode, run.stderr.decode()) from None
+        raise CodeException(code, file, first_loc, run.returncode, run.stderr.decode()) from None
 
     ret = (run.stdout.decode() + run.stderr.decode()).strip()
 

src/sphinx_exec_code/code_exec_error.py

@@ -1,14 +1,16 @@
 import re
 from pathlib import Path
-from typing import List, Tuple
+from typing import List
 
-re_line = re.compile(r'^\s*File "(<string>)", line (\d+), in <module>')
+re_line = re.compile(r'^\s*File "(<string>)", line (\d+), in <module>', re.MULTILINE)
 
 
 class CodeException(Exception):
-    def __init__(self, code: str, loc: Tuple[str, int], ret: int, stderr: str):
+    def __init__(self, code: str, file: Path, first_loc: int, ret: int, stderr: str):
         self.code = code
-        self.loc: Tuple[str, int] = loc
+
+        self.file: Path = file
+        self.first_loc: int = first_loc
 
         self.exec_ret = ret
         self.exec_err = stderr
@@ -18,19 +20,20 @@ def _err_line(self, lines: List[str]) -> int:
         err_line = len(lines)
         for m in re_line.finditer(self.exec_err):
             err_line = int(m.group(2))
-        return err_line
+        return err_line - 1
 
     def pformat(self) -> List[str]:
-        filename = Path(self.loc[0]).name
+        filename = self.file.name
         code_lines = self.code.splitlines()
         err_line = self._err_line(code_lines)
 
         ret = []
 
         # add code snippet
-        for i in range(max(0, err_line - 8), err_line - 1):
-            ret.append(f'   {code_lines[i]}')
-        ret.append(f'   {code_lines[err_line - 1]} <--')
+        snip_start = max(0, err_line - 8)
+        snip_last = min(err_line + 1, len(code_lines))
+        for i in range(snip_start, snip_last):
+            ret.append(f'   {code_lines[i]}' if i != err_line else f'   {code_lines[err_line]} <--')
 
         # add traceback
         ret.append('')
@@ -40,6 +43,6 @@ def pformat(self) -> List[str]:
                 tb_line = tb_line.replace('File "<string>"', f'File "{filename}"')
                 tb_line = tb_line.replace('File "<string>"', f'File "{filename}"')
                 tb_line = tb_line.replace(f', line {m.group(2)}, in <module>',
-                                          f', line {int(m.group(2)) + self.loc[1] + 1}')
+                                          f', line {int(m.group(2)) + self.first_loc - 1}')
             ret.append(tb_line)
         return ret

src/sphinx_exec_code/sphinx_exec.py

@@ -1,6 +1,6 @@
 import traceback
 from pathlib import Path
-from typing import Optional
+from typing import List, Optional
 
 from docutils import nodes
 from sphinx.errors import ExtensionError
@@ -61,20 +61,39 @@ def run(self) -> list:
                     log.error(line)
             raise ExtensionError(f'Error while running {name}!', orig_exc=e)
 
+    def _get_code_line(self, line_no: int, content: List[str]) -> int:
+        """Get the first line number of the code"""
+        if not content:
+            return line_no
+
+        i = 0
+        first_line = content[0]
+
+        for i, raw_line in enumerate(self.block_text.splitlines()):
+            # raw line contains the leading white spaces
+            if raw_line.lstrip() == first_line:
+                break
+
+        return line_no + i
+
     def _run(self) -> list:
         """ Executes python code for an RST document, taking input from content or from a filename
         :return:
         """
         output = []
-        file, line = self.get_source_info()
+        raw_file, raw_line = self.get_source_info()
         content = self.content
 
+        file = Path(raw_file)
+        line = self._get_code_line(raw_line, content)
+
         code_spec = SpecCode.from_options(self.options)
 
         # Read from example files
         if code_spec.filename:
             filename = (EXAMPLE_DIR / code_spec.filename).resolve()
             content = filename.read_text(encoding='utf-8').splitlines()
+            file, line = filename, 1
 
         # format the code
         try:

tests/test_code_exec.py

@@ -25,7 +25,7 @@ def test_err(setup_env):
     code = "print('Line1')\nprint('Line2')\n1/0"
 
     with pytest.raises(CodeException) as e:
-        execute_code(code, 'my_file', 5)
+        execute_code(code, Path('/my_file'), 5)
 
     msg = e.value.pformat()
     assert msg == [
@@ -34,6 +34,6 @@ def test_err(setup_env):
         '   1/0 <--',
         '',
         'Traceback (most recent call last):',
-        '  File "my_file", line 9',
+        '  File "my_file", line 7',
         'ZeroDivisionError: division by zero'
     ]