Error in Warning

[andbiz]

How to reproduce:

from __future__ import division
import numpy as np
import pandas as pd
import pyphysio as ph

FILE = '/home/andrea/Trento/CODICE/workspaces/pyHRV/pyHRV/sample_data/medical.txt'
FSAMP = 2048
TSTART = 0

data = np.loadtxt(FILE, delimiter='\t')
ecg = ph.EvenlySignal(data[:, 0], sampling_freq = FSAMP, signal_nature = 'ECG', start_time = TSTART)

ecg_bp = ph.IIRFilter(fp=[10, 50], fs=[0.01, 70])(ecg) # <== 

Traceback (most recent call last):

  File "<ipython-input-43-61d61d81a620>", line 1, in <module>
    ecg_bp = ph.IIRFilter(fp=[10, 50], fs=[0.01, 70])(ecg)  # OK

  File "pyphysio/BaseAlgorithm.py", line 50, in __call__
    return self.get(data, self._params)

  File "pyphysio/BaseAlgorithm.py", line 79, in get
    return cls.algorithm(data, kwargs)

  File "pyphysio/filters/Filters.py", line 175, in algorithm
    cls.warn(cls.__name__ + ': Filter parameters allow no solution. Returning original signal.')

  File "pyphysio/BaseAlgorithm.py", line 144, in warn
    cls.emulate_log([l])

  File "pyphysio/BaseAlgorithm.py", line 168, in emulate_log
    map(lambda f, m: f(m), log)

TypeError: <lambda>() takes exactly 2 arguments (1 given)