diff --git a/schainpy/cli/cli.py b/schainpy/cli/cli.py
index 8c04d8d..8873109 100644
--- a/schainpy/cli/cli.py
+++ b/schainpy/cli/cli.py
@@ -4,8 +4,6 @@ import subprocess
 import os
 import sys
 import glob
-save_stdout = sys.stdout
-sys.stdout = open('/dev/null', 'w')
 from multiprocessing import cpu_count
 from schainpy.controller import Project
 from schainpy.model import Operation, ProcessingUnit
@@ -19,7 +17,6 @@ try:
     from queue import Queue
 except:
     from Queue import Queue
-sys.stdout = save_stdout
 
 
 def getProcs():
@@ -45,11 +42,19 @@ def getOperations():
 
 def getArgs(op):
     module = locate('schainpy.model.{}'.format(op))
-    
-    if hasattr(module, '__attrs__'):
-        args = module.__attrs__
+    try:
+        obj = module(1,2,3,Queue(),5,6)
+    except:
+        obj = module()
+
+    if hasattr(obj, '__attrs__'):
+        args = obj.__attrs__
     else:
-        args = inspect.getargspec(module.run).args
+        if hasattr(obj, 'myrun'):
+            args = inspect.getfullargspec(obj.myrun).args
+        else:
+            args = inspect.getfullargspec(obj.run).args
+    
     try:
         args.remove('self')
     except Exception as e:
@@ -148,7 +153,7 @@ def search(nextcommand):
     if nextcommand is None:
         log.error('There is no Operation/ProcessingUnit to search', '')    
     else:
-        try:        
+        try:
             args = getArgs(nextcommand)
             doc = getDoc(nextcommand)
             if len(args) == 0:
diff --git a/schainpy/model/io/jroIO_digitalRF.py b/schainpy/model/io/jroIO_digitalRF.py
index f0cf564..743703a 100644
--- a/schainpy/model/io/jroIO_digitalRF.py
+++ b/schainpy/model/io/jroIO_digitalRF.py
@@ -29,7 +29,7 @@ import pickle
 try:
     import digital_rf
 except:
-    print('You should install "digital_rf" module if you want to read Digital RF data')
+    pass
 
 @MPDecorator
 class DigitalRFReader(ProcessingUnit):
diff --git a/schainpy/model/io/jroIO_heispectra.py b/schainpy/model/io/jroIO_heispectra.py
index 69b81a3..3a144d0 100644
--- a/schainpy/model/io/jroIO_heispectra.py
+++ b/schainpy/model/io/jroIO_heispectra.py
@@ -14,7 +14,7 @@ from time import sleep
 try:
     import pyfits
 except ImportError as e:
-    print("Fits data cannot be used. Install pyfits module")
+    pass
 
 from xml.etree.ElementTree import ElementTree
 
diff --git a/schainpy/model/io/jroIO_madrigal.py b/schainpy/model/io/jroIO_madrigal.py
index d99145c..c587169 100644
--- a/schainpy/model/io/jroIO_madrigal.py
+++ b/schainpy/model/io/jroIO_madrigal.py
@@ -23,9 +23,7 @@ from schainpy.utils import log
 try:
     import madrigal.cedar
 except:
-    log.warning(
-        'You should install "madrigal library" module if you want to read/write Madrigal data'
-        )
+    pass
 
 try:
     basestring
diff --git a/schainpy/model/io/jroIO_usrp.py b/schainpy/model/io/jroIO_usrp.py
index c58254f..06d2d3c 100644
--- a/schainpy/model/io/jroIO_usrp.py
+++ b/schainpy/model/io/jroIO_usrp.py
@@ -19,7 +19,7 @@ from schainpy.model.proc.jroproc_base import ProcessingUnit, Operation
 try:
     import digital_rf_hdf5
 except:
-    print('You should install "digital_rf_hdf5" module if you want to read USRP data')
+    pass
 
 class USRPReader(ProcessingUnit):
     '''
diff --git a/schainpy/model/io/pxIO_param.py b/schainpy/model/io/pxIO_param.py
index c3e23c5..86d6755 100644
--- a/schainpy/model/io/pxIO_param.py
+++ b/schainpy/model/io/pxIO_param.py
@@ -23,9 +23,7 @@ from schainpy.utils import log
 try:
     from netCDF4 import Dataset
 except:
-    log.warning(
-        'You should install "netCDF4" module if you want to read/write NCDF files'
-        )
+    pass
 
 UT1970 = datetime.datetime(1970, 1, 1) - datetime.timedelta(seconds=time.timezone)
 
diff --git a/schainpy/model/utils/jroutils_ftp.py b/schainpy/model/utils/jroutils_ftp.py
index a1cc981..8be1671 100644
--- a/schainpy/model/utils/jroutils_ftp.py
+++ b/schainpy/model/utils/jroutils_ftp.py
@@ -9,7 +9,7 @@ try:
     import paramiko
     import scp
 except:
-    print("You should install paramiko and scp libraries \nif you want to use SSH protocol to upload files to the server")
+    pass
 
 import time