Fixes #1: Migrated the fn keyword to def

examples/simple.mojo

@@ -4,7 +4,7 @@ from dotenv import dotenv_values, load_dotenv
 from os import getenv
 
 
-fn main() raises:
+def main():
     print("=" * 60)
     print("mojo-dotenv Example")
     print("=" * 60)

pixi.toml

@@ -1,4 +1,4 @@
-[project]
+[workspace]
 authors = ["Michael Booth <michael@databooth.com.au>"]
 channels = ["conda-forge", "https://conda.modular.com/max"]
 name = "mojo-dotenv"

src/dotenv/__init__.mojo

@@ -10,7 +10,7 @@ from .loader import load_dotenv
 from .finder import find_dotenv
 
 
-fn dotenv_values(dotenv_path: String, verbose: Bool = False) raises -> Dict[String, String]:
+def dotenv_values(dotenv_path: String, verbose: Bool = False) -> Dict[String, String]:
     """Parse a .env file and return its content as a dictionary.
 
     This function reads a .env file and returns a dictionary mapping

src/dotenv/finder.mojo

@@ -3,7 +3,7 @@
 from pathlib import Path
 
 
-fn find_dotenv(filename: String = ".env", raise_error_if_not_found: Bool = False, usecwd: Bool = False) raises -> String:
+def find_dotenv(filename: String = ".env", raise_error_if_not_found: Bool = False, usecwd: Bool = False) -> String:
     """Search in increasingly higher folders for the given file.
 
     Searches upward from the current directory (or working directory if usecwd=True)

src/dotenv/loader.mojo

@@ -5,7 +5,7 @@ from pathlib import Path
 from .parser import parse_dotenv
 
 
-fn load_dotenv(dotenv_path: String, override: Bool = False, verbose: Bool = False) raises -> Bool:
+def load_dotenv(dotenv_path: String, override: Bool = False, verbose: Bool = False) -> Bool:
     """Load variables from a .env file into the environment.
 
     Reads a .env file and sets all found variables as environment variables.

src/dotenv/parser.mojo

@@ -7,15 +7,15 @@ from collections import Dict, Optional, List
 from os import getenv
 
 
-fn to_chars(text: String) -> List[String]:
+def to_chars(text: String) -> List[String]:
     """Convert a String into a list of single-codepoint Strings."""
     var chars = List[String]()
     for slice in text.codepoint_slices():
         chars.append(String(slice))
     return chars^
 
 
-fn join_chars(chars: List[String], start: Int, end: Int) -> String:
+def join_chars(chars: List[String], start: Int, end: Int) -> String:
     """Join a slice of character list [start, end) into a String."""
     var result = String("")
     var i = start
@@ -25,7 +25,7 @@ fn join_chars(chars: List[String], start: Int, end: Int) -> String:
     return result
 
 
-fn count_trailing_backslashes(text: String, end_pos: Int) -> Int:
+def count_trailing_backslashes(text: String, end_pos: Int) -> Int:
     """Count consecutive backslashes before the given character position.
 
     Args:
@@ -44,7 +44,7 @@ fn count_trailing_backslashes(text: String, end_pos: Int) -> Int:
     return count
 
 
-fn lookup_variable(var_name: String, env_dict: Dict[String, String], fallback_literal: String) raises -> String:
+def lookup_variable(var_name: String, env_dict: Dict[String, String], fallback_literal: String) -> String:
     """Look up a variable in env_dict, then system environment, else return literal.
 
     Args:
@@ -65,7 +65,7 @@ fn lookup_variable(var_name: String, env_dict: Dict[String, String], fallback_li
     return fallback_literal
 
 
-fn strip_inline_comment(line: String) -> String:
+def strip_inline_comment(line: String) -> String:
     """Strip inline comments from a line.
 
     Handles # comments after values, but not within quotes.
@@ -109,7 +109,7 @@ fn strip_inline_comment(line: String) -> String:
     return line
 
 
-fn expand_variables(value: String, env_dict: Dict[String, String]) raises -> String:
+def expand_variables(value: String, env_dict: Dict[String, String]) -> String:
     """Expand variable references in a value.
 
     Supports:
@@ -182,7 +182,7 @@ fn expand_variables(value: String, env_dict: Dict[String, String]) raises -> Str
     return result
 
 
-fn process_escapes(value: String) -> String:
+def process_escapes(value: String) -> String:
     """Process escape sequences in a string.
 
     Handles:
@@ -233,7 +233,7 @@ fn process_escapes(value: String) -> String:
     return result
 
 
-fn strip_quotes(value: String) -> String:
+def strip_quotes(value: String) -> String:
     """Strip outer quotes (single or double) from a value and process escapes.
 
     Args:
@@ -261,7 +261,7 @@ fn strip_quotes(value: String) -> String:
     return v_str
 
 
-fn parse_line(line: String, verbose: Bool = False) -> Optional[Tuple[String, String]]:
+def parse_line(line: String, verbose: Bool = False) -> Optional[Tuple[String, String]]:
     """Parse a single line from a .env file.
 
     Handles:
@@ -324,7 +324,7 @@ fn parse_line(line: String, verbose: Bool = False) -> Optional[Tuple[String, Str
     return (key, value)
 
 
-fn parse_dotenv(content: String, verbose: Bool = False) raises -> Dict[String, String]:
+def parse_dotenv(content: String, verbose: Bool = False) -> Dict[String, String]:
     """Parse the entire content of a .env file.
 
     Performs two passes:

test_package.mojo

@@ -1,6 +1,6 @@
 from dotenv import dotenv_values, load_dotenv, find_dotenv
 
-fn main() raises:
+def main():
     # Basic smoke test: ensure we can import and call the public API without error.
     var path = find_dotenv()
     # We do not assert on specific values here; we just ensure calls succeed.

tests/test_python_compat.mojo

@@ -5,7 +5,7 @@ from dotenv import dotenv_values
 from python import Python, PythonObject
 
 
-fn test_fixture_against_python(fixture_path: String) raises:
+def test_fixture_against_python(fixture_path: String):
     """Test a fixture matches python-dotenv results."""
     var mojo_result = dotenv_values(fixture_path)
     var py = Python.import_module("dotenv")