Fix tkinter (#49)

* Remove inter_plotting loading at beginning of files

* Delete acc.png

biosppy/__init__.py

@@ -18,5 +18,5 @@
 # allow lazy loading
 from .signals import acc, abp, bvp, ppg, pcg, ecg, eda, eeg, emg, resp, tools, hrv
 from .synthesizers import ecg, emg
-from .inter_plotting import ecg, acc
+# from .inter_plotting import ecg, acc
 from .features import frequency, time, time_freq, cepstral, phase_space

biosppy/signals/acc.py

@@ -25,7 +25,6 @@
 
 # local
 from .. import plotting, utils
-from biosppy.inter_plotting import acc as inter_plotting
 
 
 def acc(signal=None, sampling_rate=100.0, units=None, path=None, show=True, interactive=False):
@@ -88,6 +87,7 @@ def acc(signal=None, sampling_rate=100.0, units=None, path=None, show=True, inte
     # plot
     if show:
         if interactive:
+            from biosppy.inter_plotting import acc as inter_plotting
             inter_plotting.plot_acc(
                 ts=ts,  # plotting.plot_acc
                 raw=signal,

biosppy/signals/ecg.py

@@ -26,7 +26,6 @@
 # local
 from . import tools as st
 from .. import plotting, utils
-from biosppy.inter_plotting import ecg as inter_plotting
 from scipy.signal import argrelextrema
 
 
@@ -123,6 +122,7 @@ def ecg(signal=None, sampling_rate=1000.0, units=None, path=None, show=True, int
     # plot
     if show:
         if interactive:
+            from biosppy.inter_plotting import ecg as inter_plotting
             inter_plotting.plot_ecg(
                 ts=ts,
                 raw=signal,