use map in place of list

2 files changed, 6 insertions, 4 deletions

diff --git a/src/gleam/os.gleam b/src/gleam/os.gleam
index 027ef6e..8ae522d 100644
--- a/src/gleam/os.gleam
+++ b/src/gleam/os.gleam
@@ -1,6 +1,7 @@
 //// Function to interact with the host operating system.
 
 import gleam/list
+import gleam/map.{Map}
 import gleam/string
 
 // Internal type for erlang interop.
@@ -22,7 +23,7 @@ external fn string_to_char_list(String) -> CharList =
   "erlang" "binary_to_list"
 
 /// Return all environment variables set on the system.
-pub fn get_env() -> List(tuple(String, String)) {
+pub fn get_env() -> Map(String, String) {
   list.map(
     os_getenv(),
     fn(char_list) {
@@ -30,6 +31,7 @@ pub fn get_env() -> List(tuple(String, String)) {
       value
     },
   )
+  |> map.from_list()
 }
 
 /// Set an environment variable.
diff --git a/test/gleam/os_test.gleam b/test/gleam/os_test.gleam
index b632331..f248d2b 100644
--- a/test/gleam/os_test.gleam
+++ b/test/gleam/os_test.gleam
@@ -1,15 +1,15 @@
-import gleam/list
+import gleam/map
 import gleam/os
 import gleam/should
 
 pub fn env_test() {
   os.insert_env("GLEAM_TEST", "hello")
   os.get_env()
-  |> list.key_find("GLEAM_TEST")
+  |> map.get("GLEAM_TEST")
   |> should.equal(Ok("hello"))
 
   os.delete_env("GLEAM_TEST")
   os.get_env()
-  |> list.key_find("GLEAM_TEST")
+  |> map.get("GLEAM_TEST")
   |> should.equal(Error(Nil))
 }