refactor try/except blocks to safe_print function

jc/cli.py

@@ -84,16 +84,7 @@ if PYGMENTS_INSTALLED:
         }
 
 
-def asciify(string):
+
-    """
-    Return a string downgraded from Unicode to ASCII with some simple
-    conversions.
-    """
-    string = string.replace('©', '(c)')
-    # the ascii() function adds single quotes around the string
-    string = ascii(string)[1:-1]
-    string = string.replace(r'\n', '\n')
-    return string
 
 
 def set_env_colors(env_colors=None):
@@ -449,17 +440,11 @@ def main():
         sys.exit(0)
 
     if help_me:
-        try:
+        utils.safe_print(help_doc(sys.argv))
-            print(help_doc(sys.argv))
-        except UnicodeEncodeError:
-            print(asciify(help_doc(sys.argv)))
         sys.exit(0)
 
     if version_info:
-        try:
+        utils.safe_print(versiontext())
-            print(versiontext())
-        except UnicodeEncodeError:
-            print(asciify(versiontext()))
         sys.exit(0)
 
     # if magic syntax used, try to run the command and error if it's not found, etc.
@@ -474,10 +459,7 @@ def main():
         try:
             magic_stdout, magic_stderr, magic_exit_code = run_user_command(run_command)
             if magic_stderr:
-                try:
+                utils.safe_print(magic_stderr[:-1], file=sys.stderr)
-                    print(magic_stderr[:-1], file=sys.stderr)
-                except UnicodeEncodeError:
-                    print(asciify(magic_stderr[:-1], file=sys.stderr))
 
         except OSError as e:
             if debug:

jc/utils.py

@@ -9,6 +9,25 @@ from functools import lru_cache
 from typing import List, Iterable, Union, Optional
 
 
+def asciify(string: str) -> str:
+    """
+    Return a string downgraded from Unicode to ASCII with some simple
+    conversions.
+    """
+    string = string.replace('©', '(c)')
+    # the ascii() function adds single quotes around the string
+    string = ascii(string)[1:-1]
+    string = string.replace(r'\n', '\n')
+    return string
+
+
+def safe_print(string: str, sep=' ', end='\n', file=sys.stdout, flush=False) -> None:
+    try:
+        print(string, sep=sep, end=end, file=file, flush=flush)
+    except UnicodeEncodeError:
+        print(asciify(string), sep=sep, end=end, file=file, flush=flush)
+
+
 def warning_message(message_lines: List[str]) -> None:
     """
     Prints warning message for non-fatal issues. The first line is
@@ -36,13 +55,13 @@ def warning_message(message_lines: List[str]) -> None:
     first_line = message_lines.pop(0)
     first_str = f'jc:  Warning - {first_line}'
     first_str = first_wrapper.fill(first_str)
-    print(first_str, file=sys.stderr)
+    safe_print(first_str, file=sys.stderr)
 
     for line in message_lines:
         if line == '':
             continue
         message = next_wrapper.fill(line)
-        print(message, file=sys.stderr)
+        safe_print(message, file=sys.stderr)
 
 
 def error_message(message_lines: List[str]) -> None:
@@ -68,13 +87,13 @@ def error_message(message_lines: List[str]) -> None:
     first_line = message_lines.pop(0)
     first_str = f'jc:  Error - {first_line}'
     first_str = first_wrapper.fill(first_str)
-    print(first_str, file=sys.stderr)
+    safe_print(first_str, file=sys.stderr)
 
     for line in message_lines:
         if line == '':
             continue
         message = next_wrapper.fill(line)
-        print(message, file=sys.stderr)
+        safe_print(message, file=sys.stderr)
 
 
 def compatibility(mod_name: str, compatible: List, quiet: bool = False) -> None: