local path to absolute path reference in GetData

proxtoolbox/utils/GetData/GetData.py

@@ -3,6 +3,8 @@ import sys
 import urllib.request
 import tarfile
 
+datadir = Path(__file__).parent.parent.parent.parent / 'InputData'
+
 #shows progress of download
 def dlProgress(counter, blocksize, size):
     p = counter*blocksize*100.0/size
@@ -25,11 +27,11 @@ def query_yes_no(question):
 #downloads the input data to the InputData folder. problemFamily has to be either Phase, CT or Ptychography
 def getData(problemFamily):
 	if problemFamily == 'Phase':
-		my_file = Path("../InputData/Phase/pupil.pmod")
+		my_file = datadir/'Phase'/'pupil.pmod'
 	elif problemFamily == 'CT':
-	    	my_file = Path("../InputData/CT/ART_SheppLogan.mat")
+	    	my_file = datadir/'CT'/'ART_SheppLogan.mat'
 	elif problemFamily == 'Ptychography':
-		my_file = Path("../InputData/Ptychography/gaenseliesel.png")
+		my_file = datadir/'Ptychography'/'gaenseliesel.png'
 	else:
 		print("Invalid input in GetData.GetData. problemFamily has to be Phase, CT or Ptychography")
 		return -1
@@ -37,10 +39,10 @@ def getData(problemFamily):
 	if not(my_file.is_file()):
 		print(problemFamily + " input data is missing.") 
 		if query_yes_no("Do you want to download the " + problemFamily + " input data?"):
-		    urllib.request.urlretrieve(" http://vaopt.math.uni-goettingen.de/data/" + problemFamily +  ".tar.gz","../InputData/" + problemFamily +  ".tar.gz", reporthook=dlProgress)
+		    urllib.request.urlretrieve(" http://vaopt.math.uni-goettingen.de/data/" + problemFamily +  ".tar.gz", datadir/(problemFamily + '.tar.gz'), reporthook=dlProgress)
 		    print("\nExtracting data...")
-		    tar = tarfile.open("../InputData/" + problemFamily +  ".tar.gz", "r:gz")
-		    tar.extractall("../InputData/" + problemFamily)
+		    tar = tarfile.open(datadir/(problemFamily + '.tar.gz'), "r:gz")
+		    tar.extractall(datadir/problemFamily)
 		    tar.close()
 		if not(my_file.is_file()):
 			print('***************************************************************************************')