improves tap-csv dependency on MAXOS

dlt/common/exceptions.py

@@ -1,3 +1,6 @@
+from typing import AnyStr
+
+
 class DltException(Exception):
     pass
 
@@ -28,10 +31,14 @@ def __init__(self, method: str) -> None:
 
 
 class CannotInstallDependency(DltException):
-    def __init__(self, dependency: str, interpreter: str, output: str) -> None:
+    def __init__(self, dependency: str, interpreter: str, output: AnyStr) -> None:
         self.dependency = dependency
         self.interpreter = interpreter
-        super().__init__(f"Cannot install dependency {dependency} with {interpreter} and pip:\n{output}\n")
+        if isinstance(output, bytes):
+            str_output = output.decode("utf-8")
+        else:
+            str_output = output
+        super().__init__(f"Cannot install dependency {dependency} with {interpreter} and pip:\n{str_output}\n")
 
 
 class VenvNotFound(DltException):

examples/singer_tap_example.py

@@ -15,8 +15,9 @@
 # here we use context manager to automatically delete venv after example was run
 # the dependency is meltano version of csv tap
 print("Spawning virtual environment to run singer and installing csv tap from git+https://github.com/MeltanoLabs/tap-csv.git")
+# WARNING: on MACOS you need to have working gcc to use tap-csv, otherwise dependency will not be installed
 with Venv.create(mkdtemp(), ["git+https://github.com/MeltanoLabs/tap-csv.git"]) as venv:
-    # prep singer config for csv-tap
+    # prep singer config for tap-csv
     csv_tap_config = {
         "files": [
             {