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Thank you, i did the following and manage to exist from that error : -<br />
1. Rename script from serial.py to something else<br />
2. Remove __pycache__ folder<br />
3. After deletion of folder, serial.pyc was silently created so I deleted it too.
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good day, I am testing serial port communciation on raspberry pi 3 interface with SIM 900 module. The code are attached with error message. Thanks<br />
<br />
import serial<br />
import os, time<br />
&nbsp;<br />
# Enable Serial Communication<br />
port = serial.Serial(&quot;/dev/ttyS0&quot;<wbr />, baudrate=38400, timeout=1)<br />
&nbsp;<br />
# Transmitting AT Commands to the Modem<br />
# '\r\n' indicates the Enter key<br />
&nbsp;<br />
port.write('AT'+'\r\n')<br />
rcv = port.read(10)<br />
print (rcv)<br />
<br />
&gt;&gt;&gt;&nbsp;<br />
======================== RESTART: /home/pi/SIM900.py ========================<br />
Traceback (most recent call last):<br />
&nbsp; File &quot;/home/pi/SIM900.py&quot;, line 1, in &lt;module&gt;<br />
&nbsp; &nbsp; import serial<br />
&nbsp; File &quot;/home/pi/serial.py&quot;, line 5, in &lt;module&gt;<br />
&nbsp; &nbsp; port = serial.Serial(&quot;/dev/ttyS0&quot;<wbr />, baudrate=38400, timeout=1)<br />
AttributeError: module 'serial' has no attribute 'Serial'<br />
&gt;&gt;&gt;
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good day, I am testing serial port communciation on raspberry pi 3 interface with SIM 900 module. The code are attached with error message. Thanks

import serial
import os, time
 
# Enable Serial Communication
port = serial.Serial("/dev/ttyS0", baudrate=38400, timeout=1)
 
# Transmitting AT Commands to the Modem
# '\r\n' indicates the Enter key
 
port.write('AT'+'\r\n')
rcv = port.read(10)
print (rcv)

>>> 
======================== RESTART: /home/pi/SIM900.py ========================
Traceback (most recent call last):
  File "/home/pi/SIM900.py", line 1, in <module>
    import serial
  File "/home/pi/serial.py", line 5, in <module>
    port = serial.Serial("/dev/ttyS0", baudrate=38400, timeout=1)
AttributeError: module 'serial' has no attribute 'Serial'
>>>

AttributeError: module 'serial' has no attribute 'Serial'

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