When using python3.5.3 getting KeyError 0:0
we are kind of new to coding with python3 and we have been successful using other scripts, but trying to set up this wind vane is not working for us, using a list in python3. Any help is greatly appreciated if anyone can point my 10 year old and I in the right direction. We are getting a KeyError 0:0 after reading line 36 (print directive) Here is our code:
from gpiozero import MCP3008
import time
adc = MCP3008(channel=1)
import math
wind = 0
values =
volts = {
0.4: 0.0,
1.4: 22.5,
1.2: 45.0,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
0.1: 270.0,
0.3: 292.5,
0.2: 315.5,
0.6: 337.5
}
while True:
wind = round (adc.value * 3.3,1)
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
else:
print('found ' + str(wind) + ' ' + str(volts[wind]))
Error we are getting:
File "direction-test.py", line 36, in <module>
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
KeyError: 0.0
python-3.x
asked Nov 25 '18 at 23:45
JoeJoe
12
add a comment |
we are kind of new to coding with python3 and we have been successful using other scripts, but trying to set up this wind vane is not working for us, using a list in python3. Any help is greatly appreciated if anyone can point my 10 year old and I in the right direction. We are getting a KeyError 0:0 after reading line 36 (print directive) Here is our code:
from gpiozero import MCP3008
import time
adc = MCP3008(channel=1)
import math
wind = 0
values =
volts = {
0.4: 0.0,
1.4: 22.5,
1.2: 45.0,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
0.1: 270.0,
0.3: 292.5,
0.2: 315.5,
0.6: 337.5
}
while True:
wind = round (adc.value * 3.3,1)
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
else:
print('found ' + str(wind) + ' ' + str(volts[wind]))
Error we are getting:
File "direction-test.py", line 36, in <module>
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
KeyError: 0.0
python-3.x
asked Nov 25 '18 at 23:45
JoeJoe
12
add a comment |
we are kind of new to coding with python3 and we have been successful using other scripts, but trying to set up this wind vane is not working for us, using a list in python3. Any help is greatly appreciated if anyone can point my 10 year old and I in the right direction. We are getting a KeyError 0:0 after reading line 36 (print directive) Here is our code:
from gpiozero import MCP3008
import time
adc = MCP3008(channel=1)
import math
wind = 0
values =
volts = {
0.4: 0.0,
1.4: 22.5,
1.2: 45.0,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
0.1: 270.0,
0.3: 292.5,
0.2: 315.5,
0.6: 337.5
}
while True:
wind = round (adc.value * 3.3,1)
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
else:
print('found ' + str(wind) + ' ' + str(volts[wind]))
Error we are getting:
File "direction-test.py", line 36, in <module>
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
KeyError: 0.0
python-3.x
asked Nov 25 '18 at 23:45
JoeJoe
12
we are kind of new to coding with python3 and we have been successful using other scripts, but trying to set up this wind vane is not working for us, using a list in python3. Any help is greatly appreciated if anyone can point my 10 year old and I in the right direction. We are getting a KeyError 0:0 after reading line 36 (print directive) Here is our code:
from gpiozero import MCP3008
import time
adc = MCP3008(channel=1)
import math
wind = 0
values =
volts = {
0.4: 0.0,
1.4: 22.5,
1.2: 45.0,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
2.8: 67.5,
2.7: 90.0,
2.9: 112.5,
2.2: 135.0,
2.5: 157.5,
1.8: 180.0,
2.0: 202.5,
0.7: 225.0,
0.8: 247.5,
0.1: 270.0,
0.3: 292.5,
0.2: 315.5,
0.6: 337.5
}
while True:
wind = round (adc.value * 3.3,1)
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
else:
print('found ' + str(wind) + ' ' + str(volts[wind]))
Error we are getting:
File "direction-test.py", line 36, in <module>
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
KeyError: 0.0
python-3.x
python-3.x
asked Nov 25 '18 at 23:45
JoeJoe
12
asked Nov 25 '18 at 23:45
JoeJoe
12
edited Nov 26 '18 at 0:35
Joe
asked Nov 25 '18 at 23:45
JoeJoe
12
asked Nov 25 '18 at 23:45
JoeJoe
12
asked Nov 25 '18 at 23:45
JoeJoe
12
12
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
volts[wind] gets the value of the wind key in the volts dictionary. For example, if wind = 0.4, volts[wind] gets the value 0.0 from the volts dictionary.
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
In your code above, you're checking to see if not wind in volts: and when it finds that the key is not in the dictionary, you're trying to print the non-existent key's value in line 38.
In short, remove str(volts[wind]) from line 38 to get rid of the KeyError. You can find a little more about Python dictionaries here.
answered Nov 25 '18 at 23:59
JordanJordan
707
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
add a comment |
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1 Answer
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oldest
votes
volts[wind] gets the value of the wind key in the volts dictionary. For example, if wind = 0.4, volts[wind] gets the value 0.0 from the volts dictionary.
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
In your code above, you're checking to see if not wind in volts: and when it finds that the key is not in the dictionary, you're trying to print the non-existent key's value in line 38.
In short, remove str(volts[wind]) from line 38 to get rid of the KeyError. You can find a little more about Python dictionaries here.
answered Nov 25 '18 at 23:59
JordanJordan
707
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
add a comment |
volts[wind] gets the value of the wind key in the volts dictionary. For example, if wind = 0.4, volts[wind] gets the value 0.0 from the volts dictionary.
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
In your code above, you're checking to see if not wind in volts: and when it finds that the key is not in the dictionary, you're trying to print the non-existent key's value in line 38.
In short, remove str(volts[wind]) from line 38 to get rid of the KeyError. You can find a little more about Python dictionaries here.
answered Nov 25 '18 at 23:59
JordanJordan
707
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
add a comment |
volts[wind] gets the value of the wind key in the volts dictionary. For example, if wind = 0.4, volts[wind] gets the value 0.0 from the volts dictionary.
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
In your code above, you're checking to see if not wind in volts: and when it finds that the key is not in the dictionary, you're trying to print the non-existent key's value in line 38.
In short, remove str(volts[wind]) from line 38 to get rid of the KeyError. You can find a little more about Python dictionaries here.
answered Nov 25 '18 at 23:59
JordanJordan
707
volts[wind] gets the value of the wind key in the volts dictionary. For example, if wind = 0.4, volts[wind] gets the value 0.0 from the volts dictionary.
if not wind in volts:
print('Unknown value ' + str(wind) + ' ' + str(volts[wind]))
In your code above, you're checking to see if not wind in volts: and when it finds that the key is not in the dictionary, you're trying to print the non-existent key's value in line 38.
In short, remove str(volts[wind]) from line 38 to get rid of the KeyError. You can find a little more about Python dictionaries here.
answered Nov 25 '18 at 23:59
JordanJordan
707
edited Nov 26 '18 at 20:26
answered Nov 25 '18 at 23:59
JordanJordan
707
answered Nov 25 '18 at 23:59
JordanJordan
707
answered Nov 25 '18 at 23:59
JordanJordan
707
707
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
add a comment |
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
Ok, do you mean a non-existent voltage value? I did comment out section "+ ' ' + str(volts[wind]))" just to see what happened and it did print the unknown value. I guess we are wondering if there is something wrong with the code or if our voltage value is non-existent causing the error? It seems more like code to us. Thank you so far, we really appreciate it.
– Joe
Nov 26 '18 at 0:53
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
@Joe, I added a bit more to my answer, plus a link that may be helpful for learning about Python dictionaries. Good luck!
– Jordan
Nov 26 '18 at 1:20
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, thank you so much!
– Joe
Nov 26 '18 at 2:33
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
Ok, I did get this working somewhat, but I am trying to upload the darn thing to Weather Underground and having a hard time. I will post more tomorrow. Thanks.
– Joe
Dec 9 '18 at 3:13
add a comment |
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