Master Python variable scope! Understanding local and global variables is key to avoiding
UnboundLocalErrors. Learn how Python handles assignments & references.#PythonVariableScope #PythonProgramming #UnboundLocalError #GlobalVariables #LocalVariables #PythonCoding
tech-champion.com
November 25, 2024 at 9:10 PM
Master Python variable scope! Understanding local and global variables is key to avoiding
UnboundLocalErrors. Learn how Python handles assignments & references.#PythonVariableScope #PythonProgramming #UnboundLocalError #GlobalVariables #LocalVariables #PythonCoding
writing 15 if clauses with no elses that initialize the same variables in a slightly different way but give you a big ugly unboundlocalerror if the inputs don't work with the 15 different if clauses is so evil dude
October 13, 2025 at 5:22 PM
writing 15 if clauses with no elses that initialize the same variables in a slightly different way but give you a big ugly unboundlocalerror if the inputs don't work with the 15 different if clauses is so evil dude
Fixing a Hidden Bug in comtypes: When Exception Handling Masks the Real Problem
A bug in comtypes' struct packing logic was silently converting PackingError into UnboundLocalError, making debugging nearly impossible. This fix restores the original…
https://palugadahub.com/blog/oss-comtypes-942
A bug in comtypes' struct packing logic was silently converting PackingError into UnboundLocalError, making debugging nearly impossible. This fix restores the original…
https://palugadahub.com/blog/oss-comtypes-942
June 16, 2026 at 11:10 AM
Fixing a Hidden Bug in comtypes: When Exception Handling Masks the Real Problem
A bug in comtypes' struct packing logic was silently converting PackingError into UnboundLocalError, making debugging nearly impossible. This fix restores the original…
https://palugadahub.com/blog/oss-comtypes-942
A bug in comtypes' struct packing logic was silently converting PackingError into UnboundLocalError, making debugging nearly impossible. This fix restores the original…
https://palugadahub.com/blog/oss-comtypes-942
Build-in-public: how I fixed a silent exception-masking bug in comtypes (a Python 3 UnboundLocalError hiding the real error). Full writeup: https://palugadahub.com/blog/oss-comtypes-942
June 16, 2026 at 4:11 AM
Build-in-public: how I fixed a silent exception-masking bug in comtypes (a Python 3 UnboundLocalError hiding the real error). Full writeup: https://palugadahub.com/blog/oss-comtypes-942
Found a bug in comtypes where exception handling masked the real PackingError with UnboundLocalError. When all struct packings fail, Python 3 deletes the except variable at block end, so re-raising it broke. Fixed by storing the error separately +… https://github.com/enthought/comtypes/pull/942
June 16, 2026 at 3:52 AM
Found a bug in comtypes where exception handling masked the real PackingError with UnboundLocalError. When all struct packings fail, Python 3 deletes the except variable at block end, so re-raising it broke. Fixed by storing the error separately +… https://github.com/enthought/comtypes/pull/942
Ever had this in your #Python code?
def process(items):
for item in items:
if item > 0:
result = item * 2
return result
print(process([1, 2, 3])) # Works
print(process([])) # Raises UnboundLocalError
def process(items):
for item in items:
if item > 0:
result = item * 2
return result
print(process([1, 2, 3])) # Works
print(process([])) # Raises UnboundLocalError
March 3, 2026 at 3:44 PM
Ever had this in your #Python code?
def process(items):
for item in items:
if item > 0:
result = item * 2
return result
print(process([1, 2, 3])) # Works
print(process([])) # Raises UnboundLocalError
def process(items):
for item in items:
if item > 0:
result = item * 2
return result
print(process([1, 2, 3])) # Works
print(process([])) # Raises UnboundLocalError
Tuve que tener una charla seria con Felipe.
¿Querés probar alguna que otra droga? Está bien.
¿Querés explorar lo que es el sexo? Está bien.
¿Sabés lo que está mal? Que hagas
```
try:
....
except UnboundLocalError:
pass
```
¿Querés probar alguna que otra droga? Está bien.
¿Querés explorar lo que es el sexo? Está bien.
¿Sabés lo que está mal? Que hagas
```
try:
....
except UnboundLocalError:
pass
```
November 28, 2024 at 6:33 PM
Tuve que tener una charla seria con Felipe.
¿Querés probar alguna que otra droga? Está bien.
¿Querés explorar lo que es el sexo? Está bien.
¿Sabés lo que está mal? Que hagas
```
try:
....
except UnboundLocalError:
pass
```
¿Querés probar alguna que otra droga? Está bien.
¿Querés explorar lo que es el sexo? Está bien.
¿Sabés lo que está mal? Que hagas
```
try:
....
except UnboundLocalError:
pass
```
Shadowing can even break code that LOOKS like it should work:
>>> def set_phrase(name):
... print(phrase)
... phrase = f"Hello {name}"
...
>>> set_phrase("Trey")
UnboundLocalError: cannot access local variable 'phrase' where it is not associated with a value
>>> def set_phrase(name):
... print(phrase)
... phrase = f"Hello {name}"
...
>>> set_phrase("Trey")
UnboundLocalError: cannot access local variable 'phrase' where it is not associated with a value
August 14, 2026 at 4:00 AM
Shadowing can even break code that LOOKS like it should work:
>>> def set_phrase(name):
... print(phrase)
... phrase = f"Hello {name}"
...
>>> set_phrase("Trey")
UnboundLocalError: cannot access local variable 'phrase' where it is not associated with a value
>>> def set_phrase(name):
... print(phrase)
... phrase = f"Hello {name}"
...
>>> set_phrase("Trey")
UnboundLocalError: cannot access local variable 'phrase' where it is not associated with a value
Shadowing in Python gave me an UnboundLocalError https://lobste.rs/s/rpoxub ##python
Shadowing in Python gave me an UnboundLocalError
ntietz.com
March 31, 2025 at 3:50 PM
Shadowing in Python gave me an UnboundLocalError https://lobste.rs/s/rpoxub ##python
There's a patch release for MicroPython, v1.24.1, out now:
github.com/micropython/...
Pre-built firmware downloads are already available:
micropython.org/download/
Particularly useful for rp2 and ESP32 builds - and it's also a good idea to update mpremote:
docs.micropython.org/en/latest/re...
github.com/micropython/...
Pre-built firmware downloads are already available:
micropython.org/download/
Particularly useful for rp2 and ESP32 builds - and it's also a good idea to update mpremote:
docs.micropython.org/en/latest/re...
Release Patch release for mpremote, rp2 IGMP, esp32 PWM, SDCard, and AP channel · micropython/micropython
This is a patch release containing the following commits:
tools/mpremote: fix UnboundLocalError in Transport.fs_writefile()
esp32/machine_pwm: use IDF functions to calculate resolution correctly
p...
github.com
November 30, 2024 at 6:14 AM
There's a patch release for MicroPython, v1.24.1, out now:
github.com/micropython/...
Pre-built firmware downloads are already available:
micropython.org/download/
Particularly useful for rp2 and ESP32 builds - and it's also a good idea to update mpremote:
docs.micropython.org/en/latest/re...
github.com/micropython/...
Pre-built firmware downloads are already available:
micropython.org/download/
Particularly useful for rp2 and ESP32 builds - and it's also a good idea to update mpremote:
docs.micropython.org/en/latest/re...
#Python Pop Quiz 🐍❓
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
May 21, 2026 at 8:58 AM
#Python Pop Quiz 🐍❓
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
#Python Pop Quiz 🐍❓
What is the output of this REPL session?
A) ["Python", "Garter", "Anaconda"]
B) ["Python", "Garter", "Anaconda", "Boa"]
C) builtins.NameError: name 'snakes' is not defined
D) ['Python', 'Garter', 'Anaconda', 'B', 'o', 'a']
E) UnboundLocalError
What is the output of this REPL session?
A) ["Python", "Garter", "Anaconda"]
B) ["Python", "Garter", "Anaconda", "Boa"]
C) builtins.NameError: name 'snakes' is not defined
D) ['Python', 'Garter', 'Anaconda', 'B', 'o', 'a']
E) UnboundLocalError
April 9, 2025 at 9:00 AM
#Python Pop Quiz 🐍❓
What is the output of this REPL session?
A) ["Python", "Garter", "Anaconda"]
B) ["Python", "Garter", "Anaconda", "Boa"]
C) builtins.NameError: name 'snakes' is not defined
D) ['Python', 'Garter', 'Anaconda', 'B', 'o', 'a']
E) UnboundLocalError
What is the output of this REPL session?
A) ["Python", "Garter", "Anaconda"]
B) ["Python", "Garter", "Anaconda", "Boa"]
C) builtins.NameError: name 'snakes' is not defined
D) ['Python', 'Garter', 'Anaconda', 'B', 'o', 'a']
E) UnboundLocalError
#Python Pop Quiz 🐍❓
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
March 19, 2025 at 12:40 PM
#Python Pop Quiz 🐍❓
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
What is the output when you run this code?
A) 8 and then an exception is raised
B) NameError
C) TypeError
D) UnboundLocalError
Now that @shriram.bsky.social and @dabeaz.bsky.social are here it seems like a good time rehash one of my all-time Twitter bangers about how dynamic scope is bad, but if you really want The Special Hell, that requires Python scope.
replit.com/@elfprince13...
replit.com/@elfprince13...
September 25, 2023 at 6:13 PM
Now that @shriram.bsky.social and @dabeaz.bsky.social are here it seems like a good time rehash one of my all-time Twitter bangers about how dynamic scope is bad, but if you really want The Special Hell, that requires Python scope.
replit.com/@elfprince13...
replit.com/@elfprince13...
Shadowing in Python gave me an UnboundLocalError
L: https://ntietz.com/blog/pythons-shadowing-behavior-always-surprises-me/
C: https://news.ycombinator.com/item?id=43536550
posted on 2025.03.31 at 12:03:51 (c=0, p=3)
L: https://ntietz.com/blog/pythons-shadowing-behavior-always-surprises-me/
C: https://news.ycombinator.com/item?id=43536550
posted on 2025.03.31 at 12:03:51 (c=0, p=3)
March 31, 2025 at 6:26 PM
Shadowing in Python gave me an UnboundLocalError
L: https://ntietz.com/blog/pythons-shadowing-behavior-always-surprises-me/
C: https://news.ycombinator.com/item?id=43536550
posted on 2025.03.31 at 12:03:51 (c=0, p=3)
L: https://ntietz.com/blog/pythons-shadowing-behavior-always-surprises-me/
C: https://news.ycombinator.com/item?id=43536550
posted on 2025.03.31 at 12:03:51 (c=0, p=3)
🆕 import * in Functions: UnboundLocalError & Namespace Fix
#Python #import
https://tildalice.io/python-import-star-unboundlocalerror-namespace-pollution/
#Python #import
https://tildalice.io/python-import-star-unboundlocalerror-namespace-pollution/
February 27, 2026 at 9:04 PM
🆕 import * in Functions: UnboundLocalError & Namespace Fix
#Python #import
https://tildalice.io/python-import-star-unboundlocalerror-namespace-pollution/
#Python #import
https://tildalice.io/python-import-star-unboundlocalerror-namespace-pollution/
FUCK I am training a model, waited like 20 mins, crashes out with
UnboundLocalError: cannot access local variable 'total_count' where it is not associated with a value
I hate python sometimes
UnboundLocalError: cannot access local variable 'total_count' where it is not associated with a value
I hate python sometimes
February 7, 2025 at 4:43 PM
FUCK I am training a model, waited like 20 mins, crashes out with
UnboundLocalError: cannot access local variable 'total_count' where it is not associated with a value
I hate python sometimes
UnboundLocalError: cannot access local variable 'total_count' where it is not associated with a value
I hate python sometimes