diff --git a/PyPI/setup.cfg b/PyPI/setup.cfg
index b3c113a..89281f3 100644
--- a/PyPI/setup.cfg
+++ b/PyPI/setup.cfg
@@ -1,7 +1,7 @@
 [metadata]
 # replace with your username:
 name = guan
-version = 0.0.44
+version = 0.0.45
 author = guanjihuan
 author_email = guanjihuan@163.com
 description = An open source python package
diff --git a/PyPI/src/guan/others.py b/PyPI/src/guan/others.py
index ea93fb0..7ae9620 100644
--- a/PyPI/src/guan/others.py
+++ b/PyPI/src/guan/others.py
@@ -2,6 +2,8 @@
 
 # others
 
+import guan
+
 ## download
 
 def download_with_scihub(address=None, num=1):
@@ -109,7 +111,7 @@ def pdf_to_text(pdf_path):
 
 def pdf_to_audio(pdf_path, rate=125, voice=1, read=1, save=0, print_text=0):
     import pyttsx3
-    text = pdf_to_text(pdf_path)
+    text = guan.pdf_to_text(pdf_path)
     text = text.replace('\n', ' ')
     if print_text==1:
         print(text)