Fold the mixins in __init__.py

The 2 mixins were almost the same, simplify the codebase by merging them in.

progress/__init__.py

@@ -12,7 +12,7 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import division
+from __future__ import division, print_function
 
 from collections import deque
 from datetime import timedelta
@@ -23,12 +23,17 @@ from time import time
 
 __version__ = '1.4'
 
+HIDE_CURSOR = '\x1b[?25l'
+SHOW_CURSOR = '\x1b[?25h'
+
 
 class Infinite(object):
     file = stderr
     sma_window = 10         # Simple Moving Average window
+    check_tty = True
+    hide_cursor = True
 
-    def __init__(self, *args, **kwargs):
+    def __init__(self, message='', **kwargs):
         self.index = 0
         self.start_ts = time()
         self.avg = 0
@@ -37,6 +42,15 @@ class Infinite(object):
         for key, val in kwargs.items():
             setattr(self, key, val)
 
+        self._width = 0
+        self.message = message
+
+        if self.file and self.is_tty():
+            if self.hide_cursor:
+                print(HIDE_CURSOR, end='', file=self.file)
+            print(self.message, end='', file=self.file)
+            self.file.flush()
+
     def __getitem__(self, key):
         if key.startswith('_'):
             return None
@@ -61,8 +75,31 @@ class Infinite(object):
     def start(self):
         pass
 
+    def clearln(self):
+        if self.file and self.is_tty():
+            print('\r\x1b[K', end='', file=self.file)
+
+    def write(self, s):
+        if self.file and self.is_tty():
+            line = self.message + s.ljust(self._width)
+            print('\r' + line, end='', file=self.file)
+            self._width = max(self._width, len(s))
+            self.file.flush()
+
+    def writeln(self, line):
+        if self.file and self.is_tty():
+            self.clearln()
+            print(line, end='', file=self.file)
+            self.file.flush()
+
     def finish(self):
-        pass
+        if self.file and self.is_tty():
+            print(file=self.file)
+            if self.hide_cursor:
+                print(SHOW_CURSOR, end='', file=self.file)
+
+    def is_tty(self):
+        return self.file.isatty() if self.check_tty else True
 
     def next(self, n=1):
         now = time()

progress/bar.py

@@ -19,18 +19,15 @@ from __future__ import unicode_literals
 import sys
 
 from . import Progress
-from .helpers import WritelnMixin
 
 
-class Bar(WritelnMixin, Progress):
+class Bar(Progress):
     width = 32
-    message = ''
     suffix = '%(index)d/%(max)d'
     bar_prefix = ' |'
     bar_suffix = '| '
     empty_fill = ' '
     fill = '#'
-    hide_cursor = True
 
     def update(self):
         filled_length = int(self.width * self.progress)

progress/counter.py

@@ -16,27 +16,20 @@
 
 from __future__ import unicode_literals
 from . import Infinite, Progress
-from .helpers import WriteMixin
 
 
-class Counter(WriteMixin, Infinite):
-    message = ''
-    hide_cursor = True
-
+class Counter(Infinite):
     def update(self):
         self.write(str(self.index))
 
 
-class Countdown(WriteMixin, Progress):
-    hide_cursor = True
-
+class Countdown(Progress):
     def update(self):
         self.write(str(self.remaining))
 
 
-class Stack(WriteMixin, Progress):
+class Stack(Progress):
     phases = (' ', '▁', '▂', '▃', '▄', '▅', '▆', '▇', '█')
-    hide_cursor = True
 
     def update(self):
         nphases = len(self.phases)

progress/helpers.py

@@ -12,76 +12,6 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-from __future__ import print_function
-
-
-HIDE_CURSOR = '\x1b[?25l'
-SHOW_CURSOR = '\x1b[?25h'
-
-
-class WriteMixin(object):
-    check_tty = True
-    hide_cursor = False
-
-    def __init__(self, message=None, **kwargs):
-        super(WriteMixin, self).__init__(**kwargs)
-        self._width = 0
-        if message:
-            self.message = message
-
-        if self.file and self.is_tty():
-            if self.hide_cursor:
-                print(HIDE_CURSOR, end='', file=self.file)
-            print(self.message, end='', file=self.file)
-            self.file.flush()
-
-    def write(self, s):
-        if self.file and self.is_tty():
-            line = self.message + s.ljust(self._width)
-            print('\r' + line, end='', file=self.file)
-            self._width = max(self._width, len(s))
-            self.file.flush()
-
-    def finish(self):
-        if self.file and self.is_tty() and self.hide_cursor:
-            print(SHOW_CURSOR, end='', file=self.file)
-
-    def is_tty(self):
-        return self.file.isatty() if self.check_tty else True
-
-
-class WritelnMixin(object):
-    check_tty = True
-    hide_cursor = False
-
-    def __init__(self, message=None, **kwargs):
-        super(WritelnMixin, self).__init__(**kwargs)
-        if message:
-            self.message = message
-
-        if self.file and self.is_tty() and self.hide_cursor:
-            print(HIDE_CURSOR, end='', file=self.file)
-
-    def clearln(self):
-        if self.file and self.is_tty():
-            print('\r\x1b[K', end='', file=self.file)
-
-    def writeln(self, line):
-        if self.file and self.is_tty():
-            self.clearln()
-            print(line, end='', file=self.file)
-            self.file.flush()
-
-    def finish(self):
-        if self.file and self.is_tty():
-            print(file=self.file)
-            if self.hide_cursor:
-                print(SHOW_CURSOR, end='', file=self.file)
-
-    def is_tty(self):
-        return self.file.isatty() if self.check_tty else True
-
-
 from signal import signal, SIGINT
 from sys import exit
 

progress/spinner.py

@@ -16,11 +16,9 @@
 
 from __future__ import unicode_literals
 from . import Infinite
-from .helpers import WriteMixin
 
 
-class Spinner(WriteMixin, Infinite):
-    message = ''
+class Spinner(Infinite):
     phases = ('-', '\\', '|', '/')
     hide_cursor = True
 
@@ -40,5 +38,6 @@ class MoonSpinner(Spinner):
 class LineSpinner(Spinner):
     phases = ['⎺', '⎻', '⎼', '⎽', '⎼', '⎻']
 
+
 class PixelSpinner(Spinner):
-    phases = ['⣾','⣷', '⣯', '⣟', '⡿', '⢿', '⣻', '⣽']
+    phases = ['⣾', '⣷', '⣯', '⣟', '⡿', '⢿', '⣻', '⣽']

test_progress.py

@@ -35,12 +35,10 @@ for bar_cls in (IncrementalBar, PixelBar, ShadyBar):
 for spin in (Spinner, PieSpinner, MoonSpinner, LineSpinner, PixelSpinner):
     for i in spin(spin.__name__ + ' ').iter(range(100)):
         sleep()
-    print()
 
 for singleton in (Counter, Countdown, Stack, Pie):
     for i in singleton(singleton.__name__ + ' ').iter(range(100)):
         sleep()
-    print()
 
 bar = IncrementalBar('Random', suffix='%(index)d')
 for i in range(100):