diff --git a/buffalo/misc/_log.pyx b/buffalo/misc/_log.pyx
new file mode 100644
index 0000000..f4d3a66
--- /dev/null
+++ b/buffalo/misc/_log.pyx
@@ -0,0 +1,26 @@
+# cython: experimental_cpp_class_def=True, language_level=3
+# distutils: language=c++
+# -*- coding: utf-8 -*-
+
+
+cdef extern from "buffalo/misc/log.hpp":
+    cdef cppclass _BuffaloLogger "BuffaloLogger":
+        void set_log_level(int)
+        int get_log_level()
+
+
+cdef class PyBuffaloLog:
+    """CALS object holder"""
+    cdef _BuffaloLogger* obj
+
+    def __cinit__(self):
+        self.obj = new _BuffaloLogger()
+
+    def __dealloc__(self):
+        del self.obj
+
+    def set_log_level(self, lvl):
+        self.obj.set_log_level(lvl)
+
+    def get_log_level(self):
+        return self.obj.get_log_level()
diff --git a/buffalo/misc/log.py b/buffalo/misc/log.py
new file mode 100644
index 0000000..1db0c36
--- /dev/null
+++ b/buffalo/misc/log.py
@@ -0,0 +1,176 @@
+# -*- coding: utf-8 -*-
+import time
+import logging
+import logging.handlers
+
+from buffalo.misc._log import PyBuffaloLog
+
+
+NOTSET = 0
+WARN = 1
+INFO = 2
+DEBUG = 3
+TRACE = 4
+__logger_holder = []
+
+devnull = None
+
+
+def set_log_level(lvl):
+    for logger in __logger_holder:
+        if lvl == NOTSET:
+            logger.setLevel(logging.NOTSET)
+        elif lvl == WARN:
+            logger.setLevel(logging.WARN)
+        elif lvl == INFO:
+            logger.setLevel(logging.INFO)
+        elif lvl == DEBUG:
+            logger.setLevel(logging.DEBUG)
+        else:
+            logger.setLevel(logging.DEBUG)
+    PyBuffaloLog().set_log_level(lvl)
+
+
+def get_log_level():
+    return PyBuffaloLog().get_log_level()
+
+
+def get_logger(name=__file__, no_fileno=False):
+    global __logger_holder
+    logger = logging.getLogger(name)
+    if logger.handlers:
+        return logger
+
+    lvl = get_log_level()
+    if lvl == NOTSET:
+        logger.setLevel(logging.NOTSET)
+    elif lvl == WARN:
+        logger.setLevel(logging.WARN)
+    elif lvl == INFO:
+        logger.setLevel(logging.INFO)
+    elif lvl == DEBUG:
+        logger.setLevel(logging.DEBUG)
+    else:
+        logger.setLevel(logging.DEBUG)
+
+    sh = logging.StreamHandler()
+    sh.setLevel(logging.DEBUG)
+    if name == 'pbar':
+        formatter = logging.Formatter('%(message)s')
+    elif no_fileno:
+        formatter = logging.Formatter('[%(levelname)-8s] %(asctime)s %(message)s', '%Y-%m-%d %H:%M:%S')
+    else:
+        formatter = logging.Formatter('[%(levelname)-8s] %(asctime)s [%(filename)s:%(lineno)d] %(message)s', '%Y-%m-%d %H:%M:%S')
+    sh.setFormatter(formatter)
+
+    logger.addHandler(sh)
+    __logger_holder.append(logger)
+    return logger
+
+
+class ProgressBar(object):
+    def __init__(self, level, **kwargs):
+        self.lvl = level
+        self._logger = get_logger('pbar', no_fileno=True)
+        self.logger = self.get_logger_func(self._logger, self.lvl)
+        for handle in self._logger.handlers:
+            self.terminator = handle.terminator
+            handle.terminator = ''
+        self.initialize(**kwargs)
+
+    def get_logger_func(self, logger, level):
+        if level == INFO:
+            return logger.info
+        elif level == WARN:
+            return logger.warn
+        elif level == DEBUG:
+            return logger.debug
+        else:
+            return logger.debug
+
+    def initialize(self, **kwargs):
+        if 'iterable' in kwargs:
+            try:
+                kwargs['total'] = len(kwargs['iterable'])
+            except:
+                pass
+            self.iterable = kwargs['iterable']
+        if 'total' in kwargs:
+            self.fmt = '\r[{desc}] {percent} {elapsed:0.1f}/{remains:0.1f}secs {ips:0,.2f}it/s'
+        else:
+            self.fmt = '\r[{desc}] {n_fmt:10,d}it {elapsed:0.1f}secs {ips:0,.2f}it/s'
+        self.s_t = time.time()
+        self.t = time.time()
+        self.desc = kwargs.get('desc', 'PROGRESS')
+        self.period_secs = kwargs.get('mininteral', 1)
+        self.total = kwargs.get('total', -1)
+        self.step = 0
+
+    def get_msg(self):
+        t = time.time()
+        elapsed = t - self.s_t
+        remains = 0
+        percent = '0.00%'
+        ips = 0.0
+        if self.step > 0:
+            remains = self.total / self.step * elapsed
+            ips = self.step / elapsed
+            percent = '%3.2f%s' % (elapsed / remains * 100, '%')
+        msg = self.fmt.format(desc=self.desc,
+                              percent=percent,
+                              n_fmt=int(self.step),
+                              total_fmt=self.total,
+                              elapsed=elapsed,
+                              remains=remains,
+                              ips=ips)
+        return msg
+
+    def __enter__(self):
+        self.logger(self.get_msg())
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        if self.total != -1:
+            self.step = self.total
+        self.logger(self.get_msg() + '\n')
+
+    def __iter__(self):
+        delta = None
+        cnts = 0
+        period_iter = 0
+        for obj in self.iterable:
+            yield obj
+            cnts += 1
+            self.step += 1
+            if period_iter != 0 and (cnts % period_iter == 0):
+                self.logger(self.get_msg())
+            else:
+                delta = time.time() - self.s_t
+                if delta > self.period_secs:
+                    period_iter = cnts
+        if self.total != -1:
+            self.step = self.total
+        self.logger(self.get_msg() + '\n')
+
+    def update(self, step):
+        self.step += step
+        t = time.time()
+        if self.t + self.period_secs < t:
+            self.t = t
+            self.logger(self.get_msg())
+
+pbar = ProgressBar
+iter_pbar = ProgressBar
+
+
+class supress_log_level(object):
+    def __init__(self, log_level):
+        self.desire_log_level = log_level
+        self.original_log_level = get_log_level()
+
+    def __enter__(self):
+        set_log_level(self.desire_log_level)
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        set_log_level(self.original_log_level)